Search Results - "D.C.S. Azevedo"

Adsorption study of reactive dyes onto porous clay heterostructures by Aguiar, J.E., Cecilia, J.A., Tavares, P.A.S., Azevedo, D.C.S., Castellón, E. Rodríguez, Lucena, S.M.P., Silva, I.J.

“…The present research evaluates the adsorption of reactive dyes, Remazol Violet 5R (RV5R) and Acid Blue 25 (AB25), using Porous Clay Heterostructures (PCHs)…”
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Evaluation of porous clay heterostructures modified with amine species as adsorbent for the CO2 capture by Vilarrasa-García, E., Cecilia, J.A., Azevedo, D.C.S., Cavalcante, C.L., Rodríguez-Castellón, E.

“…Porous clay heterostructures (PCH) have been synthesized from raw bentonite, obtaining porous materials with high surface area and micro-, meso- and…”
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CO2 adsorption on amine modified mesoporous silicas: Effect of the progressive disorder of the honeycomb arrangement by Vilarrasa-Garcia, E., Moya, E.M. Ortigosa, Cecilia, J.A., Cavalcante, C.L., Jiménez-Jiménez, J., Azevedo, D.C.S., Rodríguez-Castellón, E.

“…•Ordered silicas (SBA-15) are more suited for organosilane grafting than foams (MCF).•APTES-grafted MCFs adsorb less CO2 as compared to APTES-grafted…”
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Functionalization of hollow silica microspheres by impregnation or grafted of amine groups for the CO2 capture by Cecilia, J.A., Vilarrasa-García, E., García-Sancho, C., Saboya, R.M.A., Azevedo, D.C.S., Cavalcante, C.L., Rodríguez-Castellón, E.

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Evaluation of two fibrous clay minerals (sepiolite and palygorskite) for CO2 Capture by Cecilia, J.A., Vilarrasa-García, E., Cavalcante, C.L., Azevedo, D.C.S., Franco, F., Rodríguez-Castellón, E.

“…[Display omitted] •Sepiolite and palygorskite have been evaluated for their potential for CO2 capture.•Sepiolite and palygorskite were modified by…”
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CO2 adsorption on APTES functionalized mesocellular foams obtained from mesoporous silicas by Vilarrasa-García, E., Cecilia, J.A., Santos, S.M.L., Cavalcante, C.L., Jiménez-Jiménez, J., Azevedo, D.C.S., Rodríguez-Castellón, E.

“…CO2 adsorption/desorption isotherms on HTT34 for the first (squares), second (triangles) and third (circles) adsorption/desorption cycles at 25°C. Desorption…”
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Microwave-assisted nitric acid treatment of sepiolite and functionalization with polyethylenimine applied to CO2 capture and CO2/N2 separation by Vilarrasa-García, E., Cecilia, J.A., Bastos-Neto, M., Cavalcante, C.L., Azevedo, D.C.S., Rodríguez-Castellón, E.

“…[Display omitted] •Textural properties of sepiolite can be enhanced by microwave assisted acid treatment.•CO2 uptake of sepiolite improved significantly after…”
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Adsorption of thiophene and toluene on NaY zeolites exchanged with Ag(I), Ni(II) and Zn(II) by Oliveira, M.L.M., Miranda, A.A.L., Barbosa, C.M.B.M., Cavalcante, C.L., Azevedo, D.C.S., Rodriguez-Castellon, E.

“…The present study evaluates the adsorption capacity of thiophene and toluene and their competitive behaviour on zeolite NaY exchanged with transition metals (5…”
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Adsorption of polycyclic aromatic hydrocarbons (PAHs) from isooctane solutions by mesoporous molecular sieves: Influence of the surface acidity by Araújo, R.S., Azevedo, D.C.S., Cavalcante, C.L., Jiménez-López, A., Rodríguez-Castellón, E.

“…Three different mesoporous molecular sieves of MCM-41 type (a pure silica and two aluminum doped silica with Si/Al molar ratios of 10 and 30) were evaluated…”
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Valorization of wipe wastes for the synthesis of microporous carbons and their application in CO2 capture, gas separation and H2-storage by Cecilia, J.A., Vilarrasa-García, E., Azevedo, D.C.S., Vílchez-Cózar, A., Infantes-Molina, A., Ballesteros-Plata, D., Barroso-Martín, I., Rodríguez-Castellón, E.

“…Wipe wastes have been used as a cellulosic source to synthesize biochars. Prior to the synthesis of the adsorbents by the pyrolysis of wipes wastes, this waste…”
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Activated carbons synthesized from sucrose using porous clay heterostructures as template for CO2 adsorption by Cecilia, J.A., Vilarrasa-García, E., Chouikhi, N., Morales-Ospino, R., Besghaier, S., Chlendi, M., Bagane, M., Bastos-Neto, M., Azevedo, D.C.S., Rodríguez-Castellón, E.

“…•Activated carbons were synthesized from sucrose using PCH as template.•Physicochemical properties can be controlled through synthesis conditions.•The…”
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Characterization of the PSD of activated carbons by a heterogeneous surface mixed model by Alexandre de Oliveira, J.C., Soares Maia, D.A., Toso, J.P., Lopez, R.H., Azevedo, D.C.S., Zgrablich, G.

“…[Display omitted] ► A model to calculate PSD of activated carbons taking into account surface defects is presented. ► GCMC simulations of the adsorption of…”
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Chromatographic Separation of Isomaltooligosaccharides on Ion-Exchange Resins: Effect of the Cationic Form by M.C. Rabelo, C.S.M. Pereira, S. Rodrigues, A.E. Rodrigues, D.C.S. Azevedo

“…Prebiotic isomaltooligosaccharides (IMOs) are composed of α-d-glucose units linked by glucosidic α (1Ø6) bonds and they remain intact until reaching the large…”
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Adsorptive separation of fructose and glucose from an agroindustrial waste of cashew industry by Luz, D.A., Rodrigues, A.K.O., Silva, F.R.C., Torres, A.E.B., Cavalcante, C.L., Brito, E.S., Azevedo, D.C.S.

“…Nearly all agroindustrial wastes have appreciable sugar content including cashew apples ( Anacardium occidentale, L.), which are an important sub-utilized…”
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On the production of glucose and fructose syrups from cashew apple juice derivatives by Ramos, J.E.T., Duarte, T.C., Rodrigues, A.K.O., Silva, I.J., Cavalcante, C.L., Azevedo, D.C.S.

“…The cashew crop is an important agro-economic activity in many equatorial areas, although less than 10% of the cashew apple production is exploited…”
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Metal-impregnated carbon applied as adsorbent for removal of sulphur compounds using fixed-bed column technology by Martins, A.V.P.R, Ramos, J.E.T, Coelho, J.A, Vidal, C.B, Cavalcante, C.L, Azevedo, D.C.S

“…Metal-impregnated carbons (Cu–AC; Ag–AC and Pd–AC) were studied as adsorbents for the desulphurization of liquid fuels. A real gasoline was examined for…”
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Adsorption Equilibria of Natural Gas Components on Activated Carbon: Pure and Mixed Gas Isotherms by R.E. Bazan, M. Bastos-Neto, R. Staudt, H. Papp, D.C.S. Azevedo, C.L. Cavalcante

“…A typical Natural Gas (NG) composition in South America contains ca. 86% methane, 10% ethane, 1.5% carbon dioxide, 1% nitrogen and other heavier hydrocarbons…”
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Water adsorption and hydrothermal stability of CHA zeolites with different Si/Al ratios and compensating cations by Moura, P.A.S., Rodríguez-Aguado, E., Maia, D.A.S., Melo, D.C., Singh, R., Valencia, S., Webley, P.A., Rey, F., Bastos-Neto, M., Rodríguez-Castellón, E., Azevedo, D.C.S.

“…Zeolites are well known crystalline aluminosilicates, which may be used in processes that take advantage of their molecular sieving effect, such as natural gas…”
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Kaolinite-based zeolites synthesis and their application in CO2 capture processes by Cecilia, J.A., Vilarrasa-García, E., Morales-Ospino, R., Finocchio, E., Busca, G., Sapag, K., Villarroel-Rocha, J., Bastos-Neto, M., Azevedo, D.C.S., Rodríguez-Castellón, E.

“…•Zeolite type A was synthesized from natural resources under mild conditions.•Textural properties and crystallinity can be controlled through synthesis…”
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Assessment of the stability of LTA zeolites under natural gas drying TSA conditions by Moura, P.A.S., Ferracine, E.D.S., Rodríguez-Aguado, E., Maia, D.A.S., Melo, D.C., Valencia, S., Cardoso, D., Rey, F., Bastos-Neto, M., Rodríguez-Castellón, E., Azevedo, D.C.S.

“…The main features in cationic LTA zeolites that are likely to impact its potential hydrothermal stability are interconnected. The Al content and the…”
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