<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sara Inocêncio</style></author><author><style face="normal" font="default" size="100%">Cordeiro, Teresa</style></author><author><style face="normal" font="default" size="100%">Matos, Inês</style></author><author><style face="normal" font="default" size="100%">Florence Danède,</style></author><author><style face="normal" font="default" size="100%">Sotomayor, João C.</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author><author><style face="normal" font="default" size="100%">Natália T. Correia</style></author><author><style face="normal" font="default" size="100%">Corvo, Marta C.</style></author><author><style face="normal" font="default" size="100%">Madalena Dionísio</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Ibuprofen incorporated into unmodified and modified mesoporous silica: From matrix synthesis to drug release</style></title><secondary-title><style face="normal" font="default" size="100%">Microporous and Mesoporous Materials</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Amorphous materials</style></keyword><keyword><style  face="normal" font="default" size="100%">Confinement</style></keyword><keyword><style  face="normal" font="default" size="100%">Dielectric spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">Drug delivery</style></keyword><keyword><style  face="normal" font="default" size="100%">Magic angle spinning nuclear magnetic spectroscopy</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2021</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S1387181120305412</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">310</style></volume><pages><style face="normal" font="default" size="100%">110541</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Aiming to rationalize the release profile of an incorporated pharmaceutical drug in terms of its mobility, driven by guest-host interactions, the poorly water-soluble ibuprofen drug was loaded in a mesoporous inorganic silica matrix with unmodified (MCM-41) and modified surface (MCM-41sil) by post-synthesis silylation, both having pore sizes   3 nm. The single calorimetric detection of a broad glass transition step for both ibuprofen composites indicates full drug amorphization, confirmed by the only appearance of an amorphous halo in the powder XRD patterns. Moreover, a gradient profile is disclosed by the heat flux derivative plot in the glass transition, in coherence with the thermogravimetric profile that shows a multi-step decomposition trace for confined ibuprofen in these matrixes. While identical guest dynamics, as probed by dielectric relaxation spectroscopy, were found in both dehydrated composites, a significant molecular population with faster relaxation exists in the hydrated state for the drug inside the unmodified matrix. This was rationalized as the concurrence of true confinement effects, which manifest under nanometer dimensions, and greater water affinity of the unmodified matrix, forcing the drug molecules to be placed mostly in the pore core. Finite size effects are also felt in both dehydrated composites, however guest-host interactions give origin to a dominant population with slowed down mobility that governs the overall guest dynamics. In spite of an inferior number of active sites for drug adsorption in the silylated matrix, a faster ibuprofen delivery in phosphate buffer (pH = 6.8) was observed when the drug is released from unmodified MCM-41 in the hydrated state. Therefore, our results suggest that a relevant role is played by water molecules, which impair a strong guest adsorption in the host surface more efficiently than the limited surface modification, influence the higher ratio of a faster population in the pore core and facilitate the diffusion of the aqueous releasing media inside pores.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">M. Godino-Ojer</style></author><author><style face="normal" font="default" size="100%">Matos, I.</style></author><author><style face="normal" font="default" size="100%">M. Bernardo</style></author><author><style face="normal" font="default" size="100%">Carvalho, R.</style></author><author><style face="normal" font="default" size="100%">Olívia Salomé {G.P. Soares}</style></author><author><style face="normal" font="default" size="100%">C. Durán-Valle</style></author><author><style face="normal" font="default" size="100%">I. M. Fonseca</style></author><author><style face="normal" font="default" size="100%">E. Pérez Mayoral</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Acidic porous carbons involved in the green and selective synthesis of benzodiazepines</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysis Today</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">activated carbons</style></keyword><keyword><style  face="normal" font="default" size="100%">benzodiazepines</style></keyword><keyword><style  face="normal" font="default" size="100%">Heterocyclic chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Heterogeneous catalytic systems</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0920586118312938</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">357</style></volume><pages><style face="normal" font="default" size="100%">64 - 73</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Eco-sustainable and recyclable porous carbons are reported as metal-free catalysts for the synthesis of benzodiazepines for the first time. The porous carbons were able to efficiently catalyse the synthesis of benzodiazepine 1 from o-phenylendiamine 2 and acetone 3 under mild conditions. Both acidic functions and the porosity of the catalysts were determinant features. High conversion values were obtained when using HNO3 oxidized carbons. The highest selectivity to benzodiazepine 1 was obtained in the presence of the most microporous catalyst N-N, which is indicative of the great influence of porous properties. Stronger acid sites and high microporosity of the carbon treated with H2SO4 yield benzodiazepine 1 with total selectivity.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">&lt;p&gt;SI: CarboCat–VIII&lt;/p&gt;
</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Diogo Dias</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Matos, Inês</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">Filomena Pinto</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Activation of co-pyrolysis chars from rice wastes to improve the removal of Cr3+ from simulated and real industrial wastewaters</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Cleaner Production</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">activated carbons</style></keyword><keyword><style  face="normal" font="default" size="100%">Activation</style></keyword><keyword><style  face="normal" font="default" size="100%">Adsorption</style></keyword><keyword><style  face="normal" font="default" size="100%">Cr(III)</style></keyword><keyword><style  face="normal" font="default" size="100%">Pyrolysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Rice wastes</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0959652620320400</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">267</style></volume><pages><style face="normal" font="default" size="100%">121993</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Chromium is one of the most important raw materials for the European Union. Adsorption has become an important process for the recovery of metals from wastewaters, which has led to a demand for low-cost and eco-friendly adsorbents. The objective of this work was to use new and renewable carbon-based adsorbents from rice wastes in the removal/recovery of Cr(III) from synthetic and real wastewaters. Rice wastes were submitted to co-pyrolysis and the resulting char was optimized through physical and/or chemical activations/treatments. A commercial activated carbon was used for comparison purposes. All adsorbents were characterized (including an ecotoxicity test for the char precursor) and submitted to Cr(III) removal assays from a synthetic solution, in which two solid/liquid ratios (S/L) were tested (5 and 10 g/L). The CO2 activated carbon at a S/L = 5 g/L was the biomass-derived adsorbent that performed better, obtaining a maximum Cr(III) uptake capacity of 9.23 mg/g comparable to the one obtained by the commercial adsorbent at the same S/L (9.80 mg/g). The good results on this biomass-derived carbon were due to the effective volatile matter removal during the activation (from 22.7 to 4.25% w/w), which increased both surface area (from &amp;lt;5.0 to 325 m2/g) and ash content (from 30.0 to 40.4% w/w), allowing an increase in Cr(III) removal due to ion exchange mechanism and porosity development. The best adsorbent, under optimized conditions, was also applied to a chromium rich industrial wastewater. The results obtained in this real case application demonstrated a competition effect due to the presence of other ions.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rodrigues, Ana R.F.</style></author><author><style face="normal" font="default" size="100%">Maia, Margarida R.G.</style></author><author><style face="normal" font="default" size="100%">Cabrita, Ana R.J.</style></author><author><style face="normal" font="default" size="100%">Oliveira, Hugo M.</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">Trindade, Henrique</style></author><author><style face="normal" font="default" size="100%">Pereira, José L.</style></author><author><style face="normal" font="default" size="100%">Fonseca, António J.M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Assessment of potato peel and agro-forestry biochars supplementation on in vitro ruminal fermentation</style></title><secondary-title><style face="normal" font="default" size="100%">PeerJ</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Agro-forestry biochar</style></keyword><keyword><style  face="normal" font="default" size="100%">Enteric methane</style></keyword><keyword><style  face="normal" font="default" size="100%">Potato peel biochar</style></keyword><keyword><style  face="normal" font="default" size="100%">Rumen fermentation</style></keyword><keyword><style  face="normal" font="default" size="100%">Supplementation level</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.7717/peerj.9488</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">8</style></volume><pages><style face="normal" font="default" size="100%">e9488</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Background The awareness of environmental and socio-economic impacts caused by greenhouse gas emissions from the livestock sector leverages the adoption of strategies to counteract it. Feed supplements can play an important role in the reduction of the main greenhouse gas produced by ruminants—methane (CH\textsubscript{4}). In this context, this study aims to assess the effect of two biochar sources and inclusion levels on rumen fermentation parameters \textit{in vitro}. Methods Two sources of biochar (agro-forestry residues, AFB, and potato peel, PPB) were added at two levels (5 and 10%, dry matter (DM) basis) to two basal substrates (haylage and corn silage) and incubated 24-h with rumen inocula to assess the effects on CH\textsubscript{4} production and main rumen fermentation parameters \textit{in vitro}. Results AFB and PPB were obtained at different carbonization conditions resulting in different apparent surface areas, ash content, pH at the point of zero charge (pHpzc), and elemental analysis. Relative to control (0% biochar), biochar supplementation kept unaffected total gas production and yield (mL and mL/g DM, \textit{p} = 0.140 and \textit{p} = 0.240, respectively) and fermentation pH (\textit{p} = 0.666), increased CH\textsubscript{4}production and yield (mL and mL/g DM, respectively, \textit{p} = 0.001) and ammonia-N (NH\textsubscript{3}-N, \textit{p} = 0.040), and decreased total volatile fatty acids (VFA) production (\textit{p} &amp;lt; 0.001) and H\textsubscript{2} generated and consumed (\textit{p} ≤ 0.001). Biochar sources and inclusion levels had no negative effect on most of the fermentation parameters and efficiency. Acetic:propionic acid ratio (\textit{p} = 0.048) and H\textsubscript{2} consumed (\textit{p} = 0.019) were lower with AFB inclusion when compared to PPB. Biochar inclusion at 10% reduced H\textsubscript{2} consumed (\textit{p} &amp;lt; 0.001) and tended to reduce total gas production (\textit{p} = 0.055). Total VFA production (\textit{p} = 0.019), acetic acid proportion (\textit{p} = 0.011) and H\textsubscript{2} generated (\textit{p} = 0.048) were the lowest with AFB supplemented at 10%, no differences being observed among the other treatments. The basal substrate affected most fermentation parameters independently of biochar source and level used. Discussion Biochar supplementation increased NH\textsubscript{3}-N content, \textit{iso}-butyric, \textit{iso}-valeric and valeric acid proportions, and decreased VFA production suggesting a reduced energy supply for microbial growth, higher proteolysis and deamination of substrate N, and a decrease of NH\textsubscript{3}-N incorporation into microbial protein. No interaction was found between substrate and biochar source or level on any of the parameters measured. Although AFB and PPB had different textural and compositional characteristics, their effects on the rumen fermentation parameters were similar, the only observed effects being due to AFB included at 10%. Biochar supplementation promoted CH\textsubscript{4} production regardless of the source and inclusion level, suggesting that there may be other effects beyond biomass and temperature of production of biochar, highlighting the need to consider other characteristics to better identify the mechanism by which biochar may influence CH\textsubscript{4} production.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Bruna Rijo</style></author><author><style face="normal" font="default" size="100%">Francisco Lemos</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">André Vilelas</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Development of a model for an industrial acetylene hydrogenation reactor using plant data – Part I</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Engineering Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Acetylene hydrogenation</style></keyword><keyword><style  face="normal" font="default" size="100%">Carbon monoxide</style></keyword><keyword><style  face="normal" font="default" size="100%">Dynamic model</style></keyword><keyword><style  face="normal" font="default" size="100%">Front-end configuration</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S1385894719317930</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">379</style></volume><pages><style face="normal" font="default" size="100%">122390</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;In this work, a dynamic model of an industrial acetylene hydrogenation reactor with a front-end configuration was developed, based on plant operation data. This type of reactor operates in transient state, not only due to the natural fluctuations in operating conditions but also due to the effects caused by the deactivation of the catalyst. To develop the dynamic model of the acetylene hydrogenation reactor a thorough study of the effect of operating conditions was performed; the influence of variables such as the inlet temperature of the 1st reactor, the flowrate, carbon monoxide concentration, on the activity, selectivity and stability of the catalyst was examined by choosing adequate periods of the operation of the reactor. To understand the reaction mechanism of this system, several published kinetics were tested but only one was finally fitted to the industrial data, to interpret the operation of the acetylene hydrogenation reactor. A set of operation periods was used to develop the model which was then validated by applying the model to a different set of operation periods. As a conclusion, the dynamic model that was developed and validated, using actual plant operation data, was able to adequately describe the outlet temperatures of the three reactors in the system as well as the outlet acetylene concentration of the 3rd reactor.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Castanheiro, J. E.</style></author><author><style face="normal" font="default" size="100%">Vital, J.</style></author><author><style face="normal" font="default" size="100%">I. M. Fonseca</style></author><author><style face="normal" font="default" size="100%">A. M. Ramos</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Glycerol conversion into biofuel additives by acetalization with pentanal over heteropolyacids immobilized on zeolites</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysis Today</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Acetalization</style></keyword><keyword><style  face="normal" font="default" size="100%">Glycerol</style></keyword><keyword><style  face="normal" font="default" size="100%">Green processes</style></keyword><keyword><style  face="normal" font="default" size="100%">Heterogeneous catalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Heteropolyacids</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0920586118312409</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">346</style></volume><pages><style face="normal" font="default" size="100%">76 - 80</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Dodecamolydbophosphoric acid (HPMo) immobilized on USY zeolite was used as a catalyst for the acetalization of glycerol with pentanal at 70 °C. Catalysts were prepared with different amounts of heteropolyacid, and the most active sample was the HPMo2@Y catalyst (1.1 wt.%). The products of glycerol acetalization with pentanal were (2-butyl-1,3-dioxolan-4-yl)methanol, a five-member ring compound, and 2-butyl-1,3-dioxan-5-ol, a six-member ring compound. Good values of selectivity for the five-member ring compound (80–85%) were obtained with all materials. The reaction conditions were optimized using HPMo2@Y as a catalyst. The optimal conditions were determined to be 70 °C reaction temperature with 0.3 g catalyst and a 1:2.5 M ratio of glycerol to pentanal. The catalytic stability of HPMo2@Y was studied. The acetalization of glycerol with pentanal was performed using the same sample. High catalytic activity for HPMo2@Y was observed.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">&lt;p&gt;The Green Catalytic Processes Special Issue on the 6th International Congress on Green Process Engineering&lt;/p&gt;
</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Regiane C. Ferreira</style></author><author><style face="normal" font="default" size="100%">Diogo Dias</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">João Lourenço Castagnari Willimann Pimenta</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Maria A. S. D. de Barros</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Multi-component adsorption study by using bone char: modelling and removal mechanisms</style></title><secondary-title><style face="normal" font="default" size="100%">Environmental Technology</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1080/09593330.2020.1805026</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">Taylor &amp; Francis</style></publisher><pages><style face="normal" font="default" size="100%">1-16</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">n/a</style></abstract><notes><style face="normal" font="default" size="100%">&lt;p&gt;PMID: 32744169&lt;/p&gt;
</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Catalina Rodriguez Correa</style></author><author><style face="normal" font="default" size="100%">Yvonne Ringelspacher</style></author><author><style face="normal" font="default" size="100%">Gero C. Becker</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">Isabel A.A.C. Esteves</style></author><author><style face="normal" font="default" size="100%">Andrea Kruse</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Porous carbons derived from hydrothermally treated biogas digestate</style></title><secondary-title><style face="normal" font="default" size="100%">Waste Management</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biogas production</style></keyword><keyword><style  face="normal" font="default" size="100%">Biomass digestate</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydrothermal carbonization</style></keyword><keyword><style  face="normal" font="default" size="100%">Nanoporous carbons</style></keyword><keyword><style  face="normal" font="default" size="100%">Phosphate recovery from water</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0956053X20300696</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">105</style></volume><pages><style face="normal" font="default" size="100%">170 - 179</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Porous carbons from digestate-derived hydrochar were produced, characterized and their performance to reclaim phosphate from water was evaluated as a preliminary approach to demonstrate their practical application. In a first step, the digestate was converted into hydrochars through hydrothermal carbonization by using two different pH conditions: 8.3 (native conditions) and 3.0 (addition of H2SO4). The resulting hydrochars did not present significant differences. Consecutively, the hydrochars were activated with KOH to produce activated carbons with enhanced textural properties. The resulting porous carbons presented marked differences: the AC native presented a lower ash content (20.3 wt%) and a higher surface area (SBET = 1106 m2/g) when compared with the AC-H2SO4 (ash content = 43.7 wt% SBET = 503 m2/g). Phosphorus, as phosphate, is a resource present in significative amount in wastewater, causing serious problems of eutrophication. Therefore, the performance of the porous carbons samples to recover phosphate – P(PO43−) – from water was evaluated through exploitation assays that included kinetic studies. The lumped model presented a good fitting to the kinetic data and the obtained uptake capacities were the same for both carbons, 12 mg P(PO43−)/g carbon. Despite the poorer textural properties of AC-H2SO4, this carbon was richer in Ca, Al, Fe, K, and Mg cations which promoted the formation of mineral complexes with phosphate anions. The results obtained in this work are promising for the future development of P(PO43−) enriched carbons that can be used thereafter as biofertilizers in soil amendment applications.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">M. Godino-Ojer</style></author><author><style face="normal" font="default" size="100%">R. Blazquez-García</style></author><author><style face="normal" font="default" size="100%">Matos, I.</style></author><author><style face="normal" font="default" size="100%">M. Bernardo</style></author><author><style face="normal" font="default" size="100%">I. M. Fonseca</style></author><author><style face="normal" font="default" size="100%">E. {Pérez Mayoral}</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Porous carbons-derived from vegetal biomass in the synthesis of quinoxalines. Mechanistic insights</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysis Today</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Computational methods</style></keyword><keyword><style  face="normal" font="default" size="100%">Fine chemicals</style></keyword><keyword><style  face="normal" font="default" size="100%">Nanocatalysts</style></keyword><keyword><style  face="normal" font="default" size="100%">Porous carbons</style></keyword><keyword><style  face="normal" font="default" size="100%">Quinoxalines</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0920586118313579</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">354</style></volume><pages><style face="normal" font="default" size="100%">90 - 99</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We report herein for the first-time acid biomass-derived carbons from vegetal biomass, with high developed porosity, prepared through integrating method comprising pyrolysis and surface phosphonation, able to efficiently catalyze the synthesis of quinoxalines from 1,2-diamines and α-hydroxi ketones, under aerobic conditions. The obtained results indicate that the reaction is mainly driven by a combination of acid function strength and textural properties in terms of conversion and selectivity. Furthermore, our experimental and theoretical observations suggest that the preferred reaction pathway for this transformation, in the presence of the investigated acid carbon catalysts, involves cascade reactions including imination reaction between reactants, successive imine-enamine and keto-enol tautomerisms, heterocyclization followed by dehydration, and aromatization. While the acid sites seem to be a relevant role in each reaction step, the system formed by activated carbon and molecular oxygen could be behind the last oxidative reaction to give the corresponding nitrogen heterocycles.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">&lt;p&gt;SI: Fascinating catalysis&lt;/p&gt;
</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Daniela A.S. Agostinho</style></author><author><style face="normal" font="default" size="100%">Paninho, Ana I.</style></author><author><style face="normal" font="default" size="100%">Cordeiro, Teresa</style></author><author><style face="normal" font="default" size="100%">Nunes, Ana V. M.</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author><author><style face="normal" font="default" size="100%">Carolina Pereira</style></author><author><style face="normal" font="default" size="100%">Matias, Ana</style></author><author><style face="normal" font="default" size="100%">Márcia G. Ventura</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Properties of κ-carrageenan aerogels prepared by using different dissolution media and its application as drug delivery systems</style></title><secondary-title><style face="normal" font="default" size="100%">Materials Chemistry and Physics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">biocompatibility</style></keyword><keyword><style  face="normal" font="default" size="100%">Drug release</style></keyword><keyword><style  face="normal" font="default" size="100%">Kappa-carrageenan aerogels</style></keyword><keyword><style  face="normal" font="default" size="100%">Tetracycline</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S025405842030660X</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">253</style></volume><pages><style face="normal" font="default" size="100%">123290</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;This work reports the synthesis of kappa-carrageenan aerogels using different dissolution and crosslinking media in order to evaluate its effects on the textural properties of the matrixes and further on the drug loading and release performance. The different aerogel samples were produced through the dissolution of the biopolymer in water with addition of potassium salts as crosslinking agents and, in two different ionic liquids (ILs) derived from imidazolium ion, being further dried with supercritical CO2. The samples were characterized by Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR), Scanning Electron Microscopy (SEM), Nitrogen Adsorption-Desorption Analysis, Thermogravimetry (TGA) and Differential Scanning Calorimetry (DSC). The synthesized samples presented surface areas similar to the carrageenan aerogels being their structure constituted mainly by meso and macropores. The absence of ionic liquid in samples was demonstrated by DSC analysis and was corroborated by the cytotoxicity assays which revealed that cellular viability in Caco-2 cells was preserved. Tetracycline was used as a model drug and loaded in two of the prepared aerogels samples. The release experiments were performed with the composites to test in vitro drug release at physiologic pH. With a higher macroporosity, the kappa-carrageenan aerogel prepared by dissolution into ionic liquid showed a higher loading capacity than the one prepared by dissolution into water and a slightly higher release rate. The matrixes were considered to present a good potential to be used as biocompatible carriers on drug controlled delivery.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Godinho, Delfina</style></author><author><style face="normal" font="default" size="100%">Nogueira, Miguel</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Diogo Dias</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">Filomena Pinto</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Recovery of Cr(III) by using chars from the co-gasification of agriculture and forestry wastes</style></title><secondary-title><style face="normal" font="default" size="100%">Environmental Science and Pollution Research</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Aug</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s11356-019-05609-w</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">22</style></number><volume><style face="normal" font="default" size="100%">26</style></volume><pages><style face="normal" font="default" size="100%">22723–22735</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The aim of the present work was to assess the efficiency of biochars obtained from the co-gasification of blends of rice huskþinspace}+þinspace}corn cob (biochar 50CC) and rice huskþinspace}+þinspace}eucalyptus stumps (biochar 50ES), as potential renewable low-cost adsorbents for Cr(III) recovery from wastewaters. The two gasification biochars presented a weak porous structure (ABETþinspace}=þinspace}63–144 m2 g−1), but a strong alkaline character, promoted by a high content of mineral matter (59.8{%} w/w of ashes for 50CC biochar and 81.9{%} w/w for 50ES biochar). The biochars were used for Cr(III) recovery from synthetic solutions by varying the initial pH value (3, 4, and 5), liquid/solid (L/S) ratio (100–500 mL g−1), contact time (1–120 h), and initial Cr(III) concentration (10–150 mg L−1). High Cr(III) removal percentages (around 100{%}) were obtained for both biochars, due to Cr precipitation, at low L/S ratios (100 and 200 mL g−1), for the initial pH 5 and initial Cr concentration of 50 mg L−1. Under the experimental conditions in which other removal mechanisms rather than precipitation occurred, a higher removal percentage (49.9{%}) and the highest uptake capacity (6.87 mg g−1) were registered for 50CC biochar. In the equilibrium, 50ES biochar presented a Cr(III) removal percentage of 27{%} with a maximum uptake capacity of 2.58 mg g−1. The better performance on Cr(III) recovery for the biochar 50CC was attributed to its better textural properties, as well as its higher cation exchange capacity.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Elena Surra</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Isabel A.A.C. Esteves</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">José P.B. Mota</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Biomethane production through anaerobic co-digestion with Maize Cob Waste based on a biorefinery concept: A review</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Environmental Management</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Activated carbon</style></keyword><keyword><style  face="normal" font="default" size="100%">Anaerobic co-digestion</style></keyword><keyword><style  face="normal" font="default" size="100%">Bio-methane</style></keyword><keyword><style  face="normal" font="default" size="100%">Biorefinery</style></keyword><keyword><style  face="normal" font="default" size="100%">Maize Cob Waste</style></keyword><keyword><style  face="normal" font="default" size="100%">Pre-treatments</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0301479719310606</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">249</style></volume><pages><style face="normal" font="default" size="100%">109351</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Maize Cob Waste (MCW) is available worldwide in high amounts, as maize is the most produced cereal in the world. MCW is generally left in the crop fields, but due to its low biodegradability it has a negligible impact in soil fertility. Moreover, MCW can be used as substrate to balance the C/N ratio during the Anaerobic co-Digestion (AcoD) with other biodegradable substrates, and is an excellent precursor for the production of Activated Carbons (ACs). In this context, a biorefinery is theoretically discussed in the present review, based on the idea that MCW, after proper pre-treatment is valorised as precursor of ACs and as co-substrate in AcoD for biomethane generation. This paper provides an overview on different scientific and technological aspects that can be involved in the development of the proposed biorefinery; the major topics considered in this work are the following ones: (i) the most suitable pre-treatments of MCW prior to AcoD; (ii) AcoD process with regard to the critical parameters resulting from MCW pre-treatments; (iii) production of ACs using MCW as precursor, with the aim to use these ACs in biogas conditioning (H2S removal) and upgrading (biomethane production), and (iv) an overview on biogas upgrading technologies.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nogueira, Miguel</style></author><author><style face="normal" font="default" size="100%">Matos, Inês</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Filomena Pinto</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Elena Surra</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Char from Spent Tire Rubber: A Potential Adsorbent of Remazol Yellow Dye</style></title><secondary-title><style face="normal" font="default" size="100%">C—Journal of Carbon Research</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2019</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/2311-5629/5/4/76</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">4</style></number><volume><style face="normal" font="default" size="100%">5</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;A char produced from spent tire rubber showed very promising results as an adsorbent of Remazol Yellow (RY) from aqueous solutions. Spent tire rubber was submitted to a pyrolysis process optimized for char production. The obtained char was submitted to chemical, physical, and textural characterizations and, subsequently, applied as a low-cost adsorbent for dye (RY) removal in batch adsorption assays. The obtained char was characterized by relatively high ash content (12.9% wt), high fixed-carbon content (69.7% wt), a surface area of 69 m2/g, and total pore volume of 0.14 cm3/g. Remazol Yellow kinetic assays and modelling of the experimental data using the pseudo-first and pseudo-second order kinetic models demonstrated a better adjustment to the pseudo-first order model with a calculated uptake capacity of 14.2 mg RY/g char. From the equilibrium assays, the adsorption isotherm was fitted to both Langmuir and Freundlich models; it was found a better fit for the Langmuir model to the experimental data, indicating a monolayer adsorption process with a monolayer uptake capacity of 11.9 mg RY/g char. Under the experimental conditions of the adsorption assays, the char presented positive charges at its surface, able to attract the deprotonated sulfonate groups (SO3&amp;minus;) of RY; therefore, electrostatic attraction was considered the most plausible mechanism for dye removal.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Maria João Fernandes</style></author><author><style face="normal" font="default" size="100%">Manuela M. Moreira</style></author><author><style face="normal" font="default" size="100%">Paula Paíga</style></author><author><style face="normal" font="default" size="100%">Diogo Dias</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Manuela Carvalho</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">Simone Morais</style></author><author><style face="normal" font="default" size="100%">Sónia Figueiredo</style></author><author><style face="normal" font="default" size="100%">Cristina Delerue-Matos</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Evaluation of the adsorption potential of biochars prepared from forest and agri-food wastes for the removal of fluoxetine</style></title><secondary-title><style face="normal" font="default" size="100%">Bioresource Technology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Anti-depressant pharmaceutical</style></keyword><keyword><style  face="normal" font="default" size="100%">Biochar</style></keyword><keyword><style  face="normal" font="default" size="100%">Column experiments</style></keyword><keyword><style  face="normal" font="default" size="100%">Kinetics and equilibrium</style></keyword><keyword><style  face="normal" font="default" size="100%">Waste valorization</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0960852419312039</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">292</style></volume><pages><style face="normal" font="default" size="100%">121973</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Twelve biochars from forest and agri-food wastes (pruning of Quercus ilex, Eucalyptus grandis, Pinus pinaster, Quercus suber, Malus pumila, Prunus spinosa, Cydonia oblonga, Eriobotrya japonica, Juglans regia, Actinidia deliciosa, Citrus sinensis and Vitis vinifera) were investigated as potential low-cost and renewable adsorbents for removal of a commonly used pharmaceutical, fluoxetine. Preliminary adsorption experiments allowed to select the most promising adsorbents, Quercus ilex, Cydonia oblonga, Eucalyptus, Juglans regia and Vitis vinifera pruning material. They were characterized by proximate, elemental and mineral analysis, thermogravimetric analysis, Fourier transform infrared spectroscopy, determination of specific surface area and pH at the point of zero charge. Batch and equilibrium studies were performed, and the influence of pH was evaluated. The equilibrium was reached in less than 15 min in all systems. The maximum adsorption capacity obtained was 6.41 mg/g for the Eucalyptus biochar, which also demonstrated a good behavior in continuous mode (packed column).&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Castanheiro, J. E.</style></author><author><style face="normal" font="default" size="100%">Vital, J.</style></author><author><style face="normal" font="default" size="100%">I. M. Fonseca</style></author><author><style face="normal" font="default" size="100%">A. M. Ramos</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Glycerol conversion into biofuel additives by acetalization with pentanal over heteropolyacids immobilized on zeolites</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysis Today</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Acetalization</style></keyword><keyword><style  face="normal" font="default" size="100%">Glycerol</style></keyword><keyword><style  face="normal" font="default" size="100%">Green processes</style></keyword><keyword><style  face="normal" font="default" size="100%">Heterogeneous catalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Heteropolyacids</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0920586118312409</style></url></web-urls></urls><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Dodecamolydbophosphoric acid (HPMo) immobilized on USY zeolite was used as a catalyst for the acetalization of glycerol with pentanal at 70 °C. Catalysts were prepared with different amounts of heteropolyacid, and the most active sample was the HPMo2@Y catalyst (1.1 wt.%). The products of glycerol acetalization with pentanal were (2-butyl-1,3-dioxolan-4-yl)methanol, a five-member ring compound, and 2-butyl-1,3-dioxan-5-ol, a six-member ring compound. Good values of selectivity for the five-member ring compound (80–85%) were obtained with all materials. The reaction conditions were optimized using HPMo2@Y as a catalyst. The optimal conditions were determined to be 70 °C reaction temperature with 0.3 g catalyst and a 1:2.5 M ratio of glycerol to pentanal. The catalytic stability of HPMo2@Y was studied. The acetalization of glycerol with pentanal was performed using the same sample. High catalytic activity for HPMo2@Y was observed.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Elena Surra</style></author><author><style face="normal" font="default" size="100%">Miguel Costa Nogueira</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Isabel Esteves</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">New adsorbents from maize cob wastes and anaerobic digestate for H2S removal from biogas</style></title><secondary-title><style face="normal" font="default" size="100%">Waste Management</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">activated carbons</style></keyword><keyword><style  face="normal" font="default" size="100%">Anaerobic digestate</style></keyword><keyword><style  face="normal" font="default" size="100%">Biogas</style></keyword><keyword><style  face="normal" font="default" size="100%">HS removal</style></keyword><keyword><style  face="normal" font="default" size="100%">Maize Cob Waste</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0956053X19303563</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">94</style></volume><pages><style face="normal" font="default" size="100%">136 - 145</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Two activated carbons (ACs) were prepared by physical activation of Maize Cob Waste (MCW) with CO2, during 2 and 3 h (MCW(PA)2h and MCW(PA)3h, respectively). Two other ACs were prepared by chemical activation: a) MCW(LD) – MCW was impregnated with anaerobic liquid digestate (LD) and carbonized under N2 atmosphere; and b) CAR-MCW(LD) – previously carbonized MCW was impregnated with LD and carbonized under N2 atmosphere. All ACs were fully characterized for textural and chemical properties, and then used in dynamic H2S removal assays from real biogas samples. Regarding H2S removal, the ACs that were physically activated behaved much better than the impregnated ones: MCW(PA)3h and MCW(PA)2h showed H2S uptake capacities of 15.5 and 0.65 mg g−1, respectively, while MCW(LD) and CAR-MCW(LD) showed values of 0.47 and 0.25 mg g−1, respectively. This may indicate that textural properties (surface area and microporosity) are more important than mineral content in H2S removal. Effectively, both surface area and micropore volume were much higher for the samples of MCW(PA)3h (SBET = 820 m2 g−1 and Vmicro = 0.32 cm3 g−1) and MCW(PA)2h (SBET = 630 m2 g−1 and Vmicro = 0.21 cm3 g−1) than for the ACs that were chemically activated (SBET = 38.0 m2 g−1 and Vmicro = 0.01 cm3 g−1 for MCW(LD); SBET = 8.0 m2 g−1 and Vmicro = 0.01 cm3 g−1 for CAR-MCW(LD)). High oxygen content in MCW(PA)3h favoured the catalytic oxidation reaction of H2S, promoting its removal. The use of MCW as precursor and LD as activating agent of the ACs may contribute for the integrated management of maize wastes and to diversify the applications of anaerobic digestate.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pérez-Mayoral, Elena</style></author><author><style face="normal" font="default" size="100%">Matos, Inês</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">New and Advanced Porous Carbon Materials in Fine Chemical Synthesis. Emerging Precursors of Porous Carbons</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysts</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2019</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.mdpi.com/2073-4344/9/2/133</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">2</style></number><volume><style face="normal" font="default" size="100%">9</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The efficiency of porous carbons in fine chemical synthesis, among other application fields, has been demonstrated since both the porous structure and chemical surface provide the appropriated chemical environment favoring a great variety of relevant chemical transformations. In recent years, metal organic frameworks (MOFs) and covalent organic frameworks (COFs) have emerged as interesting opportunities in the preparation of porous carbons with improved physico-chemical properties. Direct calcination of MOFs or COFs, in the presence or not of others carbon or heteroatom sources, could be considered an easy and practical approach for the synthesis of highly dispersed heteroatom-doped porous carbons but also new porous carbons in which single atoms of metallic species are present, showing a great development of the porosity; both characteristics of supreme importance for catalytic applications. The goal of this review is to provide an overview of the traditional methodologies for the synthesis of new porous carbon structures together with emerging ones that use MOFs or COFs as carbon precursors. As mentioned below, the catalytic application in fine chemical synthesis of these kinds of materials is at present barely explored, but probably will expand in the near future.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">M. Godino-Ojer</style></author><author><style face="normal" font="default" size="100%">R. Blazquez-García</style></author><author><style face="normal" font="default" size="100%">Matos, I.</style></author><author><style face="normal" font="default" size="100%">M. Bernardo</style></author><author><style face="normal" font="default" size="100%">I. M. Fonseca</style></author><author><style face="normal" font="default" size="100%">E. Pérez Mayoral</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Porous carbons-derived from vegetal biomass in the synthesis of quinoxalines. Mechanistic insights</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysis Today</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Computational methods</style></keyword><keyword><style  face="normal" font="default" size="100%">Fine chemicals</style></keyword><keyword><style  face="normal" font="default" size="100%">Nanocatalysts</style></keyword><keyword><style  face="normal" font="default" size="100%">Porous carbons</style></keyword><keyword><style  face="normal" font="default" size="100%">Quinoxalines</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0920586118313579</style></url></web-urls></urls><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We report herein for the first-time acid biomass-derived carbons from vegetal biomass, with high developed porosity, prepared through integrating method comprising pyrolysis and surface phosphonation, able to efficiently catalyze the synthesis of quinoxalines from 1,2-diamines and α-hydroxi ketones, under aerobic conditions. The obtained results indicate that the reaction is mainly driven by a combination of acid function strength and textural properties in terms of conversion and selectivity. Furthermore, our experimental and theoretical observations suggest that the preferred reaction pathway for this transformation, in the presence of the investigated acid carbon catalysts, involves cascade reactions including imination reaction between reactants, successive imine-enamine and keto-enol tautomerisms, heterocyclization followed by dehydration, and aromatization. While the acid sites seem to be a relevant role in each reaction step, the system formed by activated carbon and molecular oxygen could be behind the last oxidative reaction to give the corresponding nitrogen heterocycles.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Diogo Dias</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Filomena Pinto</style></author><author><style face="normal" font="default" size="100%">Matos, Inês</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Activated carbons from the Co-pyrolysis of rice wastes for Cr(III) removal</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Engineering Transactions</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2018</style></year></dates><volume><style face="normal" font="default" size="100%">65</style></volume><pages><style face="normal" font="default" size="100%">601-606</style></pages></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Elena Surra</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Isabel A.A.C. Esteves</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">José Paulo Mota</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Enhanced Biogas Production through Anaerobic co-Digestion of OFMSW with Maize Cob Waste Pre-Treated with Hydrogen Peroxide</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Engineering Transactions</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2018</style></year></dates><volume><style face="normal" font="default" size="100%">65</style></volume><pages><style face="normal" font="default" size="100%">121-126</style></pages></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">D. Dias</style></author><author><style face="normal" font="default" size="100%">N. Lapa</style></author><author><style face="normal" font="default" size="100%">M. Bernardo</style></author><author><style face="normal" font="default" size="100%">W. Ribeiro</style></author><author><style face="normal" font="default" size="100%">Matos, I.</style></author><author><style face="normal" font="default" size="100%">I. Fonseca</style></author><author><style face="normal" font="default" size="100%">Pinto, F</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams</style></title><secondary-title><style face="normal" font="default" size="100%">Bioresource Technology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Char</style></keyword><keyword><style  face="normal" font="default" size="100%">Cr(III) removal</style></keyword><keyword><style  face="normal" font="default" size="100%">Gasification</style></keyword><keyword><style  face="normal" font="default" size="100%">Rice waste streams</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0960852418308332</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">266</style></volume><pages><style face="normal" font="default" size="100%">139 - 150</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Blends of rice waste streams were submitted to co-gasification assays. The resulting chars (G1C and G2C) were characterized and used in Cr(III) removal assays from a synthetic solution. A Commercial Activated Carbon (CAC) was used for comparison purposes. The chars were non-porous materials mainly composed by ashes (68.3–92.6% w/w). The influences of adsorbent loading (solid/liquid ratio – S/L) and initial pH in Cr(III) removal were tested. G2C at a S/L of 5 mg L−1 and an initial pH of 4.50 presented an uptake capacity significantly higher than CAC (7.29 and 2.59 mg g−1, respectively). G2C was used in Cr(III) removal assays from an industrial wastewater with Cr(III) concentrations of 50, 100 and 200 mg L−1. Cr(III) removal by precipitation (uptake capacity ranging from 11.1 to 14.9 mg g−1) was more effective in G2C, while adsorption (uptake capacity of 16.1 mg g−1) was the main removal mechanism in CAC.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Godino-Ojer, Marina</style></author><author><style face="normal" font="default" size="100%">Milla-Diez, Leticia</style></author><author><style face="normal" font="default" size="100%">Matos, Inês</style></author><author><style face="normal" font="default" size="100%">Durán-Valle, Carlos J.</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author><author><style face="normal" font="default" size="100%">Pérez Mayoral, Elena</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Enhanced Catalytic Properties of Carbon supported Zirconia and Sulfated Zirconia for the Green Synthesis of Benzodiazepines</style></title><secondary-title><style face="normal" font="default" size="100%">ChemCatChem</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">benzodiazepines</style></keyword><keyword><style  face="normal" font="default" size="100%">cascade reactions</style></keyword><keyword><style  face="normal" font="default" size="100%">multifunctional carbon catalysts</style></keyword><keyword><style  face="normal" font="default" size="100%">zirconia and sulphated zirconia carbon catalysts</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1002/cctc.201801274</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">22</style></number><volume><style face="normal" font="default" size="100%">10</style></volume><pages><style face="normal" font="default" size="100%">5215-5223</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Abstract This work reports for the first time a new series of promising porous catalytic carbon materials, functionalized with Lewis and Brønsted acid sites useful in the green synthesis of 2,3-dihydro-1H-1,5-benzodiazepine – nitrogen heterocyclic compounds. Benzodiazepines and derivatives are fine chemicals exhibiting interesting therapeutic properties. Carbon materials have been barely investigated in the synthesis of this type of compounds. Two commercial carbon materials were selected exhibiting different textural properties: i) Norit RX3 (N) as microporous sample and ii) mesoporous xerogel (X), both used as supports of ZrO2 (Zr) and ZrO2/SO42− (SZr). The supported SZr led to higher conversion values and selectivities to the target benzodiazepine. Both chemical and textural properties influenced significantly the catalytic performance. Particularly relevant are the results concerning the non-sulfated samples, NZr and XZr, that were able to catalyze the reaction leading to the target benzodiazepine with high selectivity (up to 80 %; 2 h). These results indicated an important role of the carbon own surface functional groups, avoiding the use of H2SO4. Even very low amounts of SZr supported on carbon reveal high activity and selectivity. Therefore, the carbon materials herein reported can be considered an efficient and sustainable alternative bifunctional catalysts for the benzodiazepine synthesis.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rúbia Risso</style></author><author><style face="normal" font="default" size="100%">Pedro Ferraz</style></author><author><style face="normal" font="default" size="100%">Sara Meireles</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">Vital, Joaquim</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Highly active Cao catalysts from waste shells of egg, oyster and clam for biodiesel production</style></title><secondary-title><style face="normal" font="default" size="100%">Applied Catalysis A: General</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biodiesel</style></keyword><keyword><style  face="normal" font="default" size="100%">Calcium oxide</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydration-dehydration</style></keyword><keyword><style  face="normal" font="default" size="100%">Ultrasound</style></keyword><keyword><style  face="normal" font="default" size="100%">Waste shells</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0926860X18304344</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">567</style></volume><pages><style face="normal" font="default" size="100%">56 - 64</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Calcium oxide (CaO) catalysts derived from waste shells of egg, oyster and clam were prepared and used in the methanolysis of soybean oil. Eggshells were subjected to ultrasound irradiation and mollusc shells were subjected to calcination-hydration-calcination cycles to increase the surface area of CaO and improve its catalytic activity. The catalysts were characterized by XRD, TPD-CO2, TG-DSC, DLS and N2 adsorption, while the catalytic activity for the methanolysis of soybean oil was evaluated. Five hours of sonication reduced the CaO particle size by 34%, which resulted in a 56% increase in the activity. Two cycles of hydration-dehydration applied to the material obtained by calcination of oyster shells provided CaO with 27 m2 g−1. The transesterification rate was 2.5 times higher than that obtained with the untreated sample. After treatments, highly active CaO was obtained which indicates its enormous potential for biodiesel production. A kinetic model assuming the adsorption of methoxide anions on the surface of CaO particles was proposed.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Elena Surra</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Nuno Lapa</style></author><author><style face="normal" font="default" size="100%">Isabel Esteves</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author><author><style face="normal" font="default" size="100%">José Paulo Mota</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Maize cob waste pre-treatments to enhance biogas production through co-anaerobic digestion with OFMSW</style></title><secondary-title><style face="normal" font="default" size="100%">Waste Management</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Anaerobic co-digestion</style></keyword><keyword><style  face="normal" font="default" size="100%">Biogas</style></keyword><keyword><style  face="normal" font="default" size="100%">Maize cob wastes</style></keyword><keyword><style  face="normal" font="default" size="100%">OFMSW</style></keyword><keyword><style  face="normal" font="default" size="100%">Pre-treatments</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0956053X17308024</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">72</style></volume><pages><style face="normal" font="default" size="100%">193 - 205</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;In the present work, the enhancement of biogas and methane yields through anaerobic co-digestion of the pre-hydrolised Organic Fraction of Municipal Solid Wastes (hOFMSW) and Maize Cob Wastes (MCW) in a lab-scale thermophilic anaerobic reactor was tested. In order to increase its biodegradability, MCW were submitted to an initial pre-treatment screening phase as follows: (i) microwave (MW) irradiation catalysed by NaOH, (ii) MW catalysed by glycerol in water and alkaline water solutions, (iii) MW catalysed by H2O2 with pH of 9.8 and (iv) chemical pre-treatment at room temperature catalysed by H2O2 with 4 h reaction time. The pre-treatments cataysed by H2O2 were performed with 2% MCW (wMCW/v alkaline water) at ratios of 0.125, 0.25, 0.5 and 1.0 (wH2O2/wMCW). The pre-treatment that presented the most favourable balance between sugars, lignin, cellulose and hemicellulose solubilisations, as well as low production of phenolic compound and furfural (inhibitors), was the chemical pre-treatment catalysed by H2O2, at room temperature, with a ratio of 0.5 wH2O2/wMCW (Pre1). This Pre1 was then optimised testing reaction times of 1, 2 and 3 days at a different pH (11.5) and MCW percentage (10% w/v). The optimised pre-treatment that presented the best results, considering the same criteria defined above, was the one carried out during 3 days, at pH 9.8 and 10% MCW w/v (Pre2). The anaerobic reactor was initially fed with the hOFMSW obtained from the hydrolysis tank of an industrial AD plant. The hOFMSW was than co-digested with MCW submitted to the pre-treatment Pre1. In another assay, hOFMSW was co-digested with MCW submitted pre-treatment Pre 2. The co-digestion of hOFMSW + Pre1 increased the biogas yield by 38.9% and methane yield by 29.7%, when compared to the results obtained with hOFMSW alone. The co-digestion of hOFMSW + Pre2 increased biogas yield by 46.0% and CH4 yield by 36.3%. In both cases, the methane content obtained in the biogas streams was above 66% v/v. These results show that pre-treatment with H2O2, at room temperature, is a promising low cost way to valorize MCW through co-digestion with hOFMSW.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Madureira, Joana</style></author><author><style face="normal" font="default" size="100%">Melo, Rita</style></author><author><style face="normal" font="default" size="100%">Verde, Sandra Cabo</style></author><author><style face="normal" font="default" size="100%">Matos, Inês</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Noronha, João P.</style></author><author><style face="normal" font="default" size="100%">Marga{\c c}a, Fernanda M. A.</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Recovery of phenolic compounds from multi-component solution by a synthesized activated carbon using resorcinol and formaldehyde</style></title><secondary-title><style face="normal" font="default" size="100%">Water Science and Technology</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2018</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://wst.iwaponline.com/content/77/2/456</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">2</style></number><publisher><style face="normal" font="default" size="100%">IWA Publishing</style></publisher><volume><style face="normal" font="default" size="100%">77</style></volume><pages><style face="normal" font="default" size="100%">456–466</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The adsorption of four phenolic compounds (gallic acid, protocatechuic acid, vanillic acid and syringic acid) is investigated using a synthesized mesoporous carbon on both single and multi-component synthetic solutions. Some correlation of the adsorption capacity of the carbon and the nature of adsorbate could be made, except for gallic acid whose concentration decrease seems to be not exclusively due to adsorption but also to polymerization reaction. In the multi-component mixture, negative effects in the adsorption capacity are observed probably due to competition for the active centers of the adsorbent surface. In desorption studies, ethanol presents better performance than water and acetonitrile. Vanillic acid is the compound with the higher adsorption and interestingly it is then possible to desorb a relatively high amount of it from the adsorbent, which may represent a possibility for a selective recovery of vanillic acid. These results present a potential way to treat the wastewater from the cork industry.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Bernardo, Maria Manuel Serrano</style></author><author><style face="normal" font="default" size="100%">Madeira, Catarina Alexandra Catanas</style></author><author><style face="normal" font="default" size="100%">dos Santos Nunes, Nuno Carlos Lapa</style></author><author><style face="normal" font="default" size="100%">Dias, Diogo André Costa Messias</style></author><author><style face="normal" font="default" size="100%">Godinho, Delfina Maria Barbosa</style></author><author><style face="normal" font="default" size="100%">de Jesus Pinto, Maria Filomena</style></author><author><style face="normal" font="default" size="100%">do Nascimento Matos, Inês Alexandra Morgado</style></author><author><style face="normal" font="default" size="100%">Carvalho, Ana Paula Batista</style></author><author><style face="normal" font="default" size="100%">de Figueiredo Ligeiro Fonseca, Isabel Maria</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Study of the removal mechanism of aquatic emergent pollutants by new bio-based chars</style></title><secondary-title><style face="normal" font="default" size="100%">Environmental Science and Pollution Research</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s11356-017-9938-9</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">28</style></number><volume><style face="normal" font="default" size="100%">24</style></volume><pages><style face="normal" font="default" size="100%">22698–22708</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;This work is dedicated to study the potential application of char byproducts obtained in the gasification of rice husk (RG char) and rice husk blended with corn cob (RCG char) as removal agents of two emergent aquatic contaminants: tetracycline and caffeine. The chars presented high ash contents (59.5–81.5{%}), being their mineral content mainly composed of silicon (as silica) and potassium. The samples presented a strong basic character, which was related to its higher mineral oxides content. RCG char presented better textural properties with a higher apparent surface area (144 m2 g−1) and higher micropore content (V micro = 0.05 cm3 g−1). The alkaline character of both chars promoted high ecotoxicity levels on their aqueous eluates; however, the ecotoxic behaviour was eliminated after pH correction. Adsorption experiments showed that RG char presented higher uptake capacity for both tetracycline (12.9 mg g−1) and caffeine (8.0 mg g−1), indicating that textural properties did not play a major role in the adsorption process. For tetracycline, the underlying adsorption mechanism was complexation or ion exchange reactions with the mineral elements of chars. The higher affinity of RG char to caffeine was associated with the higher alkaline character presented by this char.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">D. Godinho</style></author><author><style face="normal" font="default" size="100%">D. Dias</style></author><author><style face="normal" font="default" size="100%">M. Bernardo</style></author><author><style face="normal" font="default" size="100%">N. Lapa</style></author><author><style face="normal" font="default" size="100%">I. Fonseca</style></author><author><style face="normal" font="default" size="100%">Lopes, H.</style></author><author><style face="normal" font="default" size="100%">Pinto, F</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Adding value to gasification and co-pyrolysis chars as removal agents of Cr3+</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Hazardous Materials</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Chars</style></keyword><keyword><style  face="normal" font="default" size="100%">Co-pyrolysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Cr removal</style></keyword><keyword><style  face="normal" font="default" size="100%">Gasification</style></keyword><keyword><style  face="normal" font="default" size="100%">Rice wastes</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0304389416308093</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">321</style></volume><pages><style face="normal" font="default" size="100%">173 - 182</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The present work aims to assess the efficiency of chars, obtained from the gasification and co-pyrolysis of rice wastes, as adsorbents of Cr3+ from aqueous solution. GC and PC chars, produced in the gasification and co-pyrolysis, respectively, of rice husk and polyethylene were studied. Cr3+ removal assays were optimised for the initial pH value, adsorbent mass, contact time and Cr3+ initial concentration. GC showed a better performance than PC with about 100% Cr3+ removal, due to the pH increase that caused Cr precipitation. Under pH conditions in which the adsorption prevailed (pH&amp;lt;5.5), GC presented the highest uptake capacity (21.1mg Cr3+ g−1 char) for the following initial conditions: 50mg Cr3+ L−1; pH 5; contact time: 24h;L/S ratio: 1000mLg−1. The pseudo-second order kinetic model showed the best adjustment to GC experimental data. Both the first and second order kinetic models fitted well to PC experimental data. The ion exchange was the dominant phenomenon on the Cr3+ adsorption by GC sample. Also, this char significantly reduced the ecotoxicity of Cr3+ solutions for the bacterium Vibrio fischeri. GC char proved to be an efficient material to remove Cr3+ from aqueous solution, without the need for further activation.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Faria, Paulina</style></author><author><style face="normal" font="default" size="100%">Paulo Duarte</style></author><author><style face="normal" font="default" size="100%">Davide Barbosa</style></author><author><style face="normal" font="default" size="100%">Ferreira, Isabel</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">New composite of natural hydraulic lime mortar with graphene oxide</style></title><secondary-title><style face="normal" font="default" size="100%">Construction and Building Materials</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Graphene oxide</style></keyword><keyword><style  face="normal" font="default" size="100%">Mechanical property</style></keyword><keyword><style  face="normal" font="default" size="100%">Microstructure</style></keyword><keyword><style  face="normal" font="default" size="100%">Mortar</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural hydraulic lime</style></keyword><keyword><style  face="normal" font="default" size="100%">Physical property</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0950061817318731</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">156</style></volume><pages><style face="normal" font="default" size="100%">1150 - 1157</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Recent studies show the incorporation of graphene oxide (GO) in cement composites. But these composites are frequently incompatible with original materials for building rehabilitation. To overcome this limitation, natural hydraulic lime mortars were used as matrix, and the influence of GO percentage and type of mixing was investigated. The influence on the microstructure, mechanical and physical properties was assessed. The best results were obtained with dispersed GO at concentrations of 0.05% and 0.1%. A slight improvement of mechanical and physical characteristics was achieved. This could lead to new mortars with improved properties that can be used for building rehabilitation.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Figueira, Joana</style></author><author><style face="normal" font="default" size="100%">Loureiro, Joana</style></author><author><style face="normal" font="default" size="100%">Marques, José</style></author><author><style face="normal" font="default" size="100%">Bianchi, Catarina</style></author><author><style face="normal" font="default" size="100%">Paulo Duarte</style></author><author><style face="normal" font="default" size="100%">Ruoho, Mikko</style></author><author><style face="normal" font="default" size="100%">Tittonen, Ilkka</style></author><author><style face="normal" font="default" size="100%">Ferreira, Isabel</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Optimization of Cuprous Oxides Thin Films to be used as Thermoelectric Touch Detectors</style></title><secondary-title><style face="normal" font="default" size="100%">ACS Applied Materials &amp; Interfaces</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1021/acsami.6b12753</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">7</style></number><volume><style face="normal" font="default" size="100%">9</style></volume><pages><style face="normal" font="default" size="100%">6520-6529</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The electronic and optical properties of p-type copper oxides (CO) strongly depend on the production technique as it influences the obtained phases: cuprous oxide (Cu2O) or cupric oxide (CuO), the most common ones. Cu films deposited by thermal evaporation have been annealed in air atmosphere, with temperature between 225 and 375 °C and time between 1 and 4 h. The resultant CO films have been studied to understand the influence of processing parameters in the thermoelectric, electrical, optical, morphological, and structural properties. Films with a Cu2O single phase are formed when annealing at 225 °C, while CuO single phase films can be obtained at 375 °C. In between, both phases are obtained in proportions that depend on the film thickness and annealing time. The positive sign of the Seebeck coefficient (S), measured at room temperature (RT), confirms the p-type behavior of both oxides, showing values up to 1.2 mV·°C–1 and conductivity up to 2.9 (Ω·m)−1. A simple detector using Cu2O have been fabricated and tested with fast finger touch events.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">&lt;p&gt;PMID: 28111939&lt;/p&gt;
</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">D.S. Conceição</style></author><author><style face="normal" font="default" size="100%">C.A.L. Graça</style></author><author><style face="normal" font="default" size="100%">D.P. Ferreira</style></author><author><style face="normal" font="default" size="100%">A.M. Ferraria</style></author><author><style face="normal" font="default" size="100%">I. M. Fonseca</style></author><author><style face="normal" font="default" size="100%">A.M. Botelho do Rego</style></author><author><style face="normal" font="default" size="100%">A.C.S.C. Teixeira</style></author><author><style face="normal" font="default" size="100%">Ferreira, L. F. Vieira</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Photochemical insights of TiO2 decorated mesoporous SBA-15 materials and their influence on the photodegradation of organic contaminants</style></title><secondary-title><style face="normal" font="default" size="100%">Microporous and Mesoporous Materials</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Fluorescent dye</style></keyword><keyword><style  face="normal" font="default" size="100%">Mesoporous silica nanoparticles</style></keyword><keyword><style  face="normal" font="default" size="100%">Photocatalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Photochemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Titanium dioxide</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S1387181117304857</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">253</style></volume><pages><style face="normal" font="default" size="100%">203 - 214</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Mesoporous silica, SBA-15, decorated with different amounts of TiO2 (anatase) were prepared by a sol-gel method followed by hydrothermal treatment and calcination, in the presence of a soft template, copolymer Pluronic 123. Tetraethyl orthosilicate (TEOS) was used as the SiO2 precursor and commercially available TiO2 anatase nanoparticles as the supported photocatalyst. The materials were characterized by transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDS), N2 adsorption-desorption isotherms, raman spectroscopy, ground state diffuse reflectance (GSDR), laser induced luminescence (LIL) and X-ray photoelectron spectroscopy (XPS). The zeta potentials of the pure SBA-15, TiO2/SBA-15 substrate and the commercial anatase sample were monitored through a complete range of pH values. All the nanomaterials developed in this work were studied in terms of their photoactivity in the UV range and in the visible range, separately. In the first case, hydroxyl radicals (OH) were confirmed to be the key active oxidizers in the photodegradation of the pesticide amicarbazone in aqueous medium. On the other hand, in the visible range, and following a dye sensitization process via a fluorescent rhodamine-like dye, two different mechanisms could be identified for the formation of the superoxide radical anion, O2−.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Matos, Inês</style></author><author><style face="normal" font="default" size="100%">Bernardo, Maria</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Porous carbon: A versatile material for catalysis</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysis Today</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Acid catalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">activated carbons</style></keyword><keyword><style  face="normal" font="default" size="100%">Carbon reactions</style></keyword><keyword><style  face="normal" font="default" size="100%">Catalytic reduction</style></keyword><keyword><style  face="normal" font="default" size="100%">Heterogeneous catalysis</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0920586117300391</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">285</style></volume><pages><style face="normal" font="default" size="100%">194 - 203</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Heterogeneous catalysis is an exciting field in constant development. New and improved catalysts that can both be effective and economical are always on demand. Activated carbons may well play an important role in this field, as they are a cheaper alternative while more environmentally benign. In this paper, a brief overview of the effort developed in the application of activated carbon as heterogeneous catalysts in various reactions is presented. Functionalised activated carbon has been used as catalyst for fine chemical reactions. Gas-phase reactions for NO, N2O and CO2 conversions were thoroughly studied using activated carbon as catalyst support. In situ characterization techniques proved to be valuable tools to understand carbon gasification mechanism.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">&lt;p&gt;Women in Catalysis&lt;/p&gt;
</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">D. Dias</style></author><author><style face="normal" font="default" size="100%">N. Lapa</style></author><author><style face="normal" font="default" size="100%">M. Bernardo</style></author><author><style face="normal" font="default" size="100%">D. Godinho</style></author><author><style face="normal" font="default" size="100%">I. Fonseca</style></author><author><style face="normal" font="default" size="100%">M. Miranda</style></author><author><style face="normal" font="default" size="100%">Pinto, F</style></author><author><style face="normal" font="default" size="100%">F. Lemos</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Properties of chars from the gasification and pyrolysis of rice waste streams towards their valorisation as adsorbent materials</style></title><secondary-title><style face="normal" font="default" size="100%">Waste Management</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Char</style></keyword><keyword><style  face="normal" font="default" size="100%">Gasification</style></keyword><keyword><style  face="normal" font="default" size="100%">Pyrolysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Rice</style></keyword><keyword><style  face="normal" font="default" size="100%">Waste streams</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0956053X17302441</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">65</style></volume><pages><style face="normal" font="default" size="100%">186 - 194</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Rice straw (RS), rice husk (RH) and polyethylene (PE) were blended and submitted to gasification and pyrolysis processes. The chars obtained were submitted to textural, chemical, and ecotoxic characterisations, towards their possible valorisation. Gasification chars were mainly composed of ashes (73.4–89.8wt%), while pyrolysis chars were mainly composed of carbon (53.0–57.6wt%). Silicon (Si) was the major mineral element in all chars followed by alkaline and alkaline-earth metal species (AAEMs). In the pyrolysis chars, titanium (Ti) was also a major element, as the feedstock blends contained high fractions of PE which was the main source of Ti. Gasification chars showed higher surface areas (26.9–62.9m2g−1) and some microporosity, attributed to porous silica. On the contrary, pyrolysis chars did not present a porous matrix, mainly due to their high volatile matter content. The gasification bed char produced with 100% RH, at 850°C, with O2 as gasification agent, was selected for further characterization. This char presented the higher potential to be valorised as adsorbent material (higher surface area, higher content of metal cations with exchangeable capacity, and lowest concentrations of toxic heavy metals). The char was submitted to an aqueous leaching test to assess the mobility of chemical species and the ecotoxic level for V. fischeri. It was observed that metallic elements were significantly retained in the char, which was attributed mainly to its alkaline character. This alkaline condition promoted some ecotoxicity level on the char eluate that was eliminated after the pH correction.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Cordeiro, Teresa</style></author><author><style face="normal" font="default" size="100%">Castiñeira, Carmem</style></author><author><style face="normal" font="default" size="100%">Mendes, Davide</style></author><author><style face="normal" font="default" size="100%">Florence Danède,</style></author><author><style face="normal" font="default" size="100%">João Sotomayor</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author><author><style face="normal" font="default" size="100%">Gomes da Silva, Marco</style></author><author><style face="normal" font="default" size="100%">Alexandre Paiva</style></author><author><style face="normal" font="default" size="100%">Barreiros, Susana</style></author><author><style face="normal" font="default" size="100%">Cardoso, M Margarida</style></author><author><style face="normal" font="default" size="100%">Viciosa, Maria T.</style></author><author><style face="normal" font="default" size="100%">Natália T. Correia</style></author><author><style face="normal" font="default" size="100%">Dionisio, Madalena</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Stabilizing Unstable Amorphous Menthol through Inclusion in Mesoporous Silica Hosts</style></title><secondary-title><style face="normal" font="default" size="100%">Molecular Pharmaceutics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1021/acs.molpharmaceut.7b00386</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">9</style></number><volume><style face="normal" font="default" size="100%">14</style></volume><pages><style face="normal" font="default" size="100%">3164-3177</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">n/a</style></abstract><notes><style face="normal" font="default" size="100%">&lt;p&gt;PMID: 28836790&lt;/p&gt;
</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Castanheiro, J. E.</style></author><author><style face="normal" font="default" size="100%">I. M. Fonseca</style></author><author><style face="normal" font="default" size="100%">A. M. Ramos</style></author><author><style face="normal" font="default" size="100%">Vital, J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tungstophosphoric acid immobilised in SBA-15 as an efficient heterogeneous acid catalyst for the conversion of terpenes and free fatty acids</style></title><secondary-title><style face="normal" font="default" size="100%">Microporous and Mesoporous Materials</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Fatty acids</style></keyword><keyword><style  face="normal" font="default" size="100%">Heteropolyacids</style></keyword><keyword><style  face="normal" font="default" size="100%">SBA-15</style></keyword><keyword><style  face="normal" font="default" size="100%">Terpenes</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S1387181117302962</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">249</style></volume><pages><style face="normal" font="default" size="100%">16 - 24</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Alkoxylation of α−pinene, β−pinene and limonene was performed in the presence of SBA-15-occluded tungstophosphoric acid (HPW). The HPW was immobilised in SBA-15 using the sol-gel method. The catalysts were characterised by N2 adsorption, FT-IR, Raman spectroscopy, X-Ray diffraction, ICP-AES and TEM. A series of catalysts with different heteropolyacid loadings ranging from 1.8 to 19.3 wt. % were prepared. PW4-SBA-15 (with 10.8 wt. %) exhibited the highest catalytic activity for the alkoxylation of α-pinene with ethanol. An approximately 53% selectivity to α-terpinyl ethyl ether was observed over the PW-SBA-15 catalysts. PW4-SBA-15 was also used as a catalyst for the alkoxylation of other terpenes, including β-pinene and limonene. The PW4-SBA-15 catalyst exhibited high catalytic stability for the alkoxylation of α-pinene with ethanol. PW4-SBA-15 was also used as a catalyst for the esterification of free fatty acids (i.e., palmitic, stearic and oleic acids) with ethanol. Good catalytic activity was observed for the PW4-SBA-15 catalyst with the different substrates used in the esterifications.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sofia C. Lourenço</style></author><author><style face="normal" font="default" size="100%">Torres, Cristiana A. V.</style></author><author><style face="normal" font="default" size="100%">Nunes, Daniela</style></author><author><style face="normal" font="default" size="100%">Paulo Duarte</style></author><author><style face="normal" font="default" size="100%">Freitas, Filomena</style></author><author><style face="normal" font="default" size="100%">Reis, Maria A M</style></author><author><style face="normal" font="default" size="100%">Elvira Fortunato</style></author><author><style face="normal" font="default" size="100%">Margarida Moldão-Martins</style></author><author><style face="normal" font="default" size="100%">Luísa Beirão da Costa</style></author><author><style face="normal" font="default" size="100%">Vítor D. Alves</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Using a bacterial fucose-rich polysaccharide as encapsulation material of bioactive compounds</style></title><secondary-title><style face="normal" font="default" size="100%">International Journal of Biological Macromolecules</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FucoPol</style></keyword><keyword><style  face="normal" font="default" size="100%">Gallic acid</style></keyword><keyword><style  face="normal" font="default" size="100%">Microencapsulation</style></keyword><keyword><style  face="normal" font="default" size="100%">Oregano essential oil</style></keyword><keyword><style  face="normal" font="default" size="100%">Spray drying</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0141813017305883</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">104</style></volume><pages><style face="normal" font="default" size="100%">1099 - 1106</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The potential of a bacterial exopolysaccharide named FucoPol, produced by the bacterium Enterobacter A47, as encapsulation matrix was explored. Spherical capsules with a smooth surface were produced by spray drying. The obtained microcapsules had average diameters ranging from 0.5 to 26.7μm and presented thin walls (thickness from 222 to 1094nm). The capsules were loaded with two bioactive compounds: gallic acid (GA) and oregano essential oil (OEO). Both bioactive materials were encapsulated in FucoPol particles, retaining their antioxidant activity after the drying process. Release studies showed that GA release in simulated gastric and intestinal fluids was faster than that of OEO, envisaging that the latter had established stronger interactions with the polymer matrix. These results suggest that FucoPol has a good potential for use as encapsulating material of bioactive compounds for application in several areas, including food, cosmetic or pharmaceutical products.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Bianchi, C.</style></author><author><style face="normal" font="default" size="100%">Ferreira, LM</style></author><author><style face="normal" font="default" size="100%">Loureiro, J.</style></author><author><style face="normal" font="default" size="100%">Rodrigues, A.</style></author><author><style face="normal" font="default" size="100%">Duarte, P</style></author><author><style face="normal" font="default" size="100%">Baptista, A. C.</style></author><author><style face="normal" font="default" size="100%">Ferreira, I. M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Vanadium Pentoxide Alloyed with Graphite for Thin-Film Thermal Sensors</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Electronic Materials</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Mar</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s11664-016-4363-2</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">3</style></number><volume><style face="normal" font="default" size="100%">45</style></volume><pages><style face="normal" font="default" size="100%">1987–1991</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The thermoelectric (TE) properties of vanadium pentoxide (V2O5) alloyed with graphite (G) were studied as a function of its incorporation percentage. Variable weight percentages of graphite powder (0–50{%}) were added to V2O5 powder and their mixtures were evaporated by a thermal evaporation technique to form thin films with a thickness in the range of 30–80 nm. In the infrared wavelength region, the transmittance of the obtained films increased as the G percentage was increased, while in the visible range, it decreased with G up to 10{%}. The TE properties were improved when G was in the range of 10–30{%}, while it decreased for the other percentages: Seebeck coefficient (S) changed from 0.6 mV/K to 0.9 mV/K and was zero with a G of 50{%}; the electrical conductivity varied slightly from 5 ($Ømega$m)−1 to 0.7 ($Ømega$m)−1 while the mobility improved from 0.07 cm2/V s to 1.5 cm2/V s and the respective carrier concentration was reduced, from 1 × 1018 cm−3 to 4 × 1016 cm−3. These films were applied as temperature sensors evaluating the thermovoltage as a function of thermal gradient between two electrodes, in which one was maintained at room temperature.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Silva, Cauê A. C.</style></author><author><style face="normal" font="default" size="100%">Figueiredo, Flávia C. A.</style></author><author><style face="normal" font="default" size="100%">Rodrigues, Raphael</style></author><author><style face="normal" font="default" size="100%">Sairre, Mirela I.</style></author><author><style face="normal" font="default" size="100%">Gonçalves, Maraisa</style></author><author><style face="normal" font="default" size="100%">Matos, Ines</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author><author><style face="normal" font="default" size="100%">Mandelli, Dalmo</style></author><author><style face="normal" font="default" size="100%">Carvalho, Wagner A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Enhancing the biodiesel manufacturing process by use of glycerin to produce hyacinth fragrance</style></title><secondary-title><style face="normal" font="default" size="100%">Clean Technologies and Environmental Policy</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jun</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s10098-016-1136-9</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">5</style></number><volume><style face="normal" font="default" size="100%">18</style></volume><pages><style face="normal" font="default" size="100%">1551–1563</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Oxidized and sulfonated-activated carbons (AC) were tested in the catalytic conversion of glycerol by acetalization reactions. The solids were treated with concentrated nitric acid and/or fuming sulfuric acid (AC, AC-N, AC-S, and AC-NS). The presence of sulfur and an increase in the acidity of the solids demonstrate the suitability of the oxidation as well as the sulfonation process, especially in the sample treated with concentrated nitric acid and fuming sulfuric acid (AC-NS). The best catalyst for the reaction of glycerol acetalization with phenylacetaldehyde was AC-NS, with a phenylacetaldehyde conversion of 95 {%} after 90 min at 383 K and selectivity of 88 and 12 {%}, respectively, to dioxolane and dioxane. These products can be used as hyacinth fragrance flavoring compounds. Furthermore, a contribution of homogeneous catalysis in these systems was not identified. Thus, we identified a possibility of glycerol conversion, a biodiesel by-product, into value-added products by suitable catalysts produced from activated carbons.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">M. Bernardo</style></author><author><style face="normal" font="default" size="100%">Rodrigues, S.</style></author><author><style face="normal" font="default" size="100%">N. Lapa</style></author><author><style face="normal" font="default" size="100%">Matos, I.</style></author><author><style face="normal" font="default" size="100%">F. Lemos</style></author><author><style face="normal" font="default" size="100%">Batista, M. K. S.</style></author><author><style face="normal" font="default" size="100%">Carvalho, A. P.</style></author><author><style face="normal" font="default" size="100%">I. Fonseca</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">High efficacy on diclofenac removal by activated carbon produced from potato peel waste</style></title><secondary-title><style face="normal" font="default" size="100%">International Journal of Environmental Science and Technology</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Aug</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s13762-016-1030-3</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">8</style></number><volume><style face="normal" font="default" size="100%">13</style></volume><pages><style face="normal" font="default" size="100%">1989–2000</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;In the present study, a novel porous carbon obtained by K2CO3 activation of potato peel waste under optimized conditions was applied for the first time as liquid-phase adsorbent of sodium diclofenac in parallel with a commercial activated carbon. The biomass-activated carbon presented an apparent surface area of 866 m2 g−1 and well-developed microporous structure with a large amount of ultramicropores. The obtained carbon presented leaching and ecotoxicological properties compatible with its safe application to aqueous medium. Kinetic data of laboratory-made and commercial sample were best fitted by the pseudo-second-order model. The commercial carbon presented higher uptake of diclofenac, but the biomass carbon presented the higher adsorption rate which was associated with its higher hydrophilic nature which favoured external mass transfer. Both adsorbents presented adsorption isotherms that were best fitted by Langmuir model. The biomass carbon and the commercial carbon presented adsorption monolayer capacities of 69 and 146 mg g−1, and Langmuir constants of 0.38 and 1.02 L mg−1, respectively. The better performance of the commercial sample was related to its slightly higher micropore volume, but the most remarkable effect was the competition of water molecules in the biomass carbon.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Cordeiro, Teresa</style></author><author><style face="normal" font="default" size="100%">Santos, Andreia F. M.</style></author><author><style face="normal" font="default" size="100%">Nunes, Guilherme</style></author><author><style face="normal" font="default" size="100%">Cunha, Guilherme</style></author><author><style face="normal" font="default" size="100%">Sotomayor, João C.</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author><author><style face="normal" font="default" size="100%">Florence Danède,</style></author><author><style face="normal" font="default" size="100%">C. J. Dias</style></author><author><style face="normal" font="default" size="100%">Cardoso, M Margarida</style></author><author><style face="normal" font="default" size="100%">Natália T. Correia</style></author><author><style face="normal" font="default" size="100%">M. Teresa Viciosa</style></author><author><style face="normal" font="default" size="100%">Madalena Dionísio</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Accessing the Physical State and Molecular Mobility of Naproxen Confined to Nanoporous Silica Matrixes</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Physical Chemistry C</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1021/acs.jpcc.6b04078</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">26</style></number><volume><style face="normal" font="default" size="100%">120</style></volume><pages><style face="normal" font="default" size="100%">14390-14401</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The pharmaceutical drug naproxen was loaded in three different silica hosts with pore diameters of 2.4 (MCM), 3.2 (MCM), and 5.9 nm (SBA), respectively: napMCM\_2.4 nm, napMCM\_3.2 nm, and napSBA\_5.9 nm. To access the guest physical state in the prepared composites, differential scanning calorimetry (DSC), X-ray diffraction (XRD), and attenuated total reflectance Fourier transform infrared spectroscopy were used. The different techniques provided complementary information on a molecular population that was revealed to be distributed among different environments, namely the pore core, the inner pore wall, and the outer surface. It was found that naproxen is semicrystalline in the higher pore size matrix being able to crystallize inside pores; after melting it undergoes full amorphization. In the case of the lower pore size matrix, naproxen crystallizes outside pores due to an excess of filling while most of the remaining fraction is incorporated inside the pores as amorphous. Crystallinity in these two composites was observed by the emergence of the Bragg peaks in the XRD analysis, whereas for napMCM\_3.2 nm only the amorphous halo was detected. The latter only exhibits the step due to the glass transition by DSC remaining stable as amorphous at least for 12 months. The glass transition in the three composites is abnormally broad, shifting to higher temperatures as the pore size decreases, coherent with the slowing down of molecular mobility as probed by dielectric relaxation spectroscopy. For napSBA\_5.9 nm the dielectric response was deconvoluted in two processes: a hindered surface (S-) process due to molecules interacting with the inner pore wall and a faster α-relaxation associated with the dynamic glass transition due to molecules relaxing in the pore core, which seems a manifestation of true confinement effects. The drug incorporation inside a nanoporous matrix, mainly in 3.2 nm pores, was revealed to be a suitable strategy to stabilize the highly crystallizable drug naproxen in the amorphous/supercooled state and to control its release from the silica matrix, allowing full delivery after 90 min in basic media.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Batista, Mary K. S.</style></author><author><style face="normal" font="default" size="100%">Ana S. Mestre</style></author><author><style face="normal" font="default" size="100%">Matos, Ines</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author><author><style face="normal" font="default" size="100%">Ana P. Carvalho</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Biodiesel production waste as promising biomass precursor of reusable activated carbons for caffeine removal</style></title><secondary-title><style face="normal" font="default" size="100%">RSC Adv.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1039/C6RA09006K</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">The Royal Society of Chemistry</style></publisher><volume><style face="normal" font="default" size="100%">6</style></volume><pages><style face="normal" font="default" size="100%">45419-45427</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Biodiesel production generates low particle size rapeseed waste (recovered from warehouse air filtration systems) that was herein explored as promising biomass precursor of chemically activated carbons. The influence of several experimental parameters on the porosity development was investigated. No benefit was observed when solution impregnation was made nor a significant dependence of the biomass : K2CO3 ratio was observed and{,} as expected{,} high porosity development was obtained only for treatments at 700 [degree]C. Microporous materials with apparent surface area around 1000 m2 g-1 were obtained comparing favorably with literature data regarding activated carbons from rapeseed processing by-products. A selected lab-made sample and two commercial carbons were tested as adsorbents of caffeine from aqueous solution. Although commercial materials present a quicker adsorption rate{,} regarding adsorption capacity the lab-made sample reaches the same value attained by a benchmark material. The regeneration tests made over the rapeseed derived carbon through heat treatments at 600 [degree]C for 1 hour under N2 flow proved that at least two exhaustion-regeneration cycles can be made since the material retains a caffeine adsorption capacity similar to that of the fresh carbon. Therefore{,} a waste management problem of biodiesel industry - rapeseed residue - can be transformed in a valuable material with promising properties for environmental remediation processes.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Adriano do Couto Fraga</style></author><author><style face="normal" font="default" size="100%">Cristina Pontes Bittencourt Quitete</style></author><author><style face="normal" font="default" size="100%">Vitor Loureiro Ximenes</style></author><author><style face="normal" font="default" size="100%">Eduardo Falabella Sousa-Aguiar</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author><author><style face="normal" font="default" size="100%">Ana M.Botelho Rego</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Biomass derived solid acids as effective hydrolysis catalysts</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Molecular Catalysis A: Chemical</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biomass</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydrolysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Oligomers</style></keyword><keyword><style  face="normal" font="default" size="100%">Solid acids</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2016</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S1381116915301680</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">422</style></volume><pages><style face="normal" font="default" size="100%">248 - 257</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The conversion of cellulose into products with higher added value often includes a depolymerization step to obtain glucose, its fundamental unity. The depolymerization reaction is carried out via hydrolysis of the β-1,4-glycosidic bond. The search for a solid acid catalyst capable of breaking these bonds is gaining increasing prominence in the literature. In this regard, sulfonated carbons have shown promising results. This work evaluated the use of a residue from the extraction of palm oil as raw material for the production of sulfonated carbons. The raw material was carbonized and sulfonated. The obtained solid acids were tested in the hydrolysis of cellobiose, a dimer of glucose often used as a model compound for cellulose. The hydrolysis reaction is the first step in converting renewable carbon sources into chemical products and biofuels. Some aspects were investigated, as the effect of carbonization temperature on the concentration of sulfonic groups, the results showing that the content thereof reached a maximum value at 300°C. Regarding the hydrolysis of cellobiose, it has been identified that there is a relationship between the concentration of sulfonic acid groups and the activity of these catalysts. However, there is a drop in the turnover number as the amount of sulfonic acid sites increases. This was related to a preferred position sulfonation mechanism. Furthermore, sulfonated carbons showed higher activity than the commercial acid resins, indicating that this material may be a good option for the generation of solid acid catalysts.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">&lt;p&gt;Contributions of Homogeneous and Heterogeneous Catalysis in Biorefining: Special Issue in Honor of Prof. Ulf Schuchardt&lt;/p&gt;
</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ana S. Mestre</style></author><author><style face="normal" font="default" size="100%">André Nabiço</style></author><author><style face="normal" font="default" size="100%">Patrick L. Figueiredo</style></author><author><style face="normal" font="default" size="100%">Moisés L. Pinto</style></author><author><style face="normal" font="default" size="100%">M. Soledade C.S. Santos</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Enhanced clofibric acid removal by activated carbons: Water hardness as a key parameter</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Engineering Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Adsorption mechanism</style></keyword><keyword><style  face="normal" font="default" size="100%">Clofibric acid</style></keyword><keyword><style  face="normal" font="default" size="100%">Kinetic and equilibrium studies</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular modeling</style></keyword><keyword><style  face="normal" font="default" size="100%">Solution pH</style></keyword><keyword><style  face="normal" font="default" size="100%">water hardness</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2016</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S1385894715014771</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">286</style></volume><pages><style face="normal" font="default" size="100%">538 - 548</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Clofibric acid is the metabolite and active principle of blood lipid regulators, it represents the class of acidic pharmaceuticals, and is one of the most persistent drug residues detected in the aquatic environment worldwide. This interdisciplinary work evaluates the effect of solution pH and water hardness in clofibric acid adsorption onto commercial activated carbons. Kinetic and equilibrium assays revealed that the highest clofibric acid removal efficiencies (&amp;gt;70%) were attained at pH 3, and that at pH 8 water hardness degree plays a fundamental role in the adsorption process. In hard water at pH 8 the removal efficiency values increased by 22 or 46% points depending on the carbon sample. Adsorbents’ textural properties also affect the adsorption process since for the microporous sample (CP) the increase of water hardness has a great influence in kinetic and equilibrium data, while for the micro+mesoporous carbon (VP) the variation of the water hardness promoted less significant changes. At pH 3 the increase of water hardness leads to changes in the adsorption mechanism of clofibric acid onto CP carbon signaled by a transition from an S-type to an L-type curve. At pH 8 the change from deionized water to hard water doubles the maximum adsorption capacity of sample CP (101.7mgg−1 vs 211.9mgg−1, respectively). The adsorption enhancement, with water hardness under alkaline conditions, was reasoned in terms of calcium complexation with clofibrate anion exposed by molecular modeling and conductivity studies. Ca2+ complexation by other acidic organic compounds may also occur, and should be considered, since it can play a fundamental role in improved design of water treatment processes employing activated carbons.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Lyubchik, Svetlana</style></author><author><style face="normal" font="default" size="100%">Lygina, Elena</style></author><author><style face="normal" font="default" size="100%">Lyubchyk, Andriy</style></author><author><style face="normal" font="default" size="100%">Lyubchik, Sergiy</style></author><author><style face="normal" font="default" size="100%">Loureiro, José M.</style></author><author><style face="normal" font="default" size="100%">Fonseca, Isabel M.</style></author><author><style face="normal" font="default" size="100%">Ribeiro, Alexandra B.</style></author><author><style face="normal" font="default" size="100%">Pinto, Margarida M.</style></author><author><style face="normal" font="default" size="100%">Figueiredo, Agnes M. Sá</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Ribeiro, Alexandra B.</style></author><author><style face="normal" font="default" size="100%">Mateus, Eduardo P.</style></author><author><style face="normal" font="default" size="100%">Couto, Nazaré</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">The Kinetic Parameters Evaluation for the Adsorption Processes at ``Liquid–Solid'' Interface</style></title><secondary-title><style face="normal" font="default" size="100%">Electrokinetics Across Disciplines and Continents: New Strategies for Sustainable Development</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/978-3-319-20179-5_5</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">Springer International Publishing</style></publisher><pub-location><style face="normal" font="default" size="100%">Cham</style></pub-location><pages><style face="normal" font="default" size="100%">81–109</style></pages><isbn><style face="normal" font="default" size="100%">978-3-319-20179-5</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The kinetic parameters of the adsorption process at ``liquid–solid'' interface have been evaluated through the sets of time-based experiments of the Cr(III) adsorption under varying temperature, initial metal concentration, and carbon loading for two sets of the commercially available activated carbons and their post-oxidized forms with different texture and surface functionality.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes></record></records></xml>