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Abstract:

Activated carbon cloths (ACC) were prepared from lyocell, a novel regenerated cellulose nanofibre fabric, by phosphoric acid activation in inert atmosphere at two different final thermal treatment temperatures (864 and 963. °C). Benzene, toluene and n-hexane isotherms at 298 and 273. K were measured in order to gain insight into the porous structure of the ACC and to evaluate their performance for the removal of volatile organic compounds (VOCs). The Dubinin-Radushkevich equation was employed to evaluate textural parameters of the ACC. The textural characteristics of the ACC were compared with those previously determined from nitrogen (77. K) and carbon dioxide (273. K) adsorption data. The samples were essentially microporous. The textural parameters calculated from the hydrocarbon isotherms were in good agreement with those evaluated from nitrogen isotherms for the ACC with the wider microporosity. Additionally, the Freundlich model provided a good description of the experimental isotherms for the three volatile organic compounds. The ACC obtained at the higher temperature exhibited a larger adsorption capacity. The ACC were also electrically conductive and showed potential for regeneration by the Joule effect, as determined from macroscopic electrical measurements before and after n-hexane adsorption. © 2009 Elsevier B.V.

Registro:

Documento: Artículo
Título:Adsorption of volatile organic compounds onto activated carbon cloths derived from a novel regenerated cellulosic precursor
Autor:Ramos, M.E.; Bonelli, P.R.; Cukierman, A.L.; Ribeiro Carrott, M.M.L.; Carrott, P.J.M.
Filiación:Desarrollo de Fuentes Alternativas de Materias Primas y Energía-PINMATE, Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Intendente Güiraldes 2620, C1428BGA, Buenos Aires, Argentina
Cátedra de Farmacotecnia II-Tecnología Especial, Departamento de Tecnología Farmacéutica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, C1113AAD, Buenos Aires, Argentina
Centro de Química de Évora and Departamento de Química, Colégio Luís António Verney, Universidade de Évora, Rua Romão Ramalho, 59, 7000-671 Évora, Portugal
Palabras clave:Activated carbon cloths; Electrothermal regeneration; Microporous materials; Surface properties; Volatile organic compounds adsorption; Activated carbon cloth; Activated carbon cloths; Adsorption capacities; Adsorption data; Before and after; Dubinin-Radushkevich equations; Electrical measurement; Electrically conductive; Electrothermal regeneration; Freundlich models; Gain insight; Higher temperatures; Inert atmospheres; Joule effects; Lyocells; Microporous; N-Hexane; Nanofibres; Nitrogen isotherms; Phosphoric acid activation; Porous structures; Regenerated cellulose; Textural characteristic; Textural parameters; Thermal treatment temperature; Adsorption; Benzene; Carbon dioxide; Gas chromatography; Hexane; Isotherms; Microporosity; Microporous materials; Phosphoric acid; Surface properties; Toluene; Trace analysis; Volatile organic compounds; Activated carbon; activated carbon; benzene; carbon dioxide; hexane; hydrocarbon; nitrogen; volatile organic compound; activated carbon; adsorption; benzene; cellulose; texture; toluene; volatile organic compound; adsorption; ambient air; article; chemical analysis; density; desorption; equilibrium constant; isotherm; molecular weight; porosity; temperature; vapor pressure; Adsorption; Air Pollutants; Cellulose; Charcoal; Conservation of Natural Resources; Temperature; Volatile Organic Compounds
Año:2010
Volumen:177
Número:1-3
Página de inicio:175
Página de fin:182
DOI: http://dx.doi.org/10.1016/j.jhazmat.2009.12.014
Título revista:Journal of Hazardous Materials
Título revista abreviado:J. Hazard. Mater.
ISSN:03043894
CODEN:JHMAD
CAS:activated carbon, 64365-11-3, 82228-96-4; benzene, 71-43-2; carbon dioxide, 124-38-9, 58561-67-4; hexane, 110-54-3; nitrogen, 7727-37-9; Air Pollutants; Cellulose, 9004-34-6; Charcoal, 16291-96-6; Volatile Organic Compounds
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043894_v177_n1-3_p175_Ramos

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Citas:

---------- APA ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L., Ribeiro Carrott, M.M.L. & Carrott, P.J.M. (2010) . Adsorption of volatile organic compounds onto activated carbon cloths derived from a novel regenerated cellulosic precursor. Journal of Hazardous Materials, 177(1-3), 175-182.
http://dx.doi.org/10.1016/j.jhazmat.2009.12.014
---------- CHICAGO ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L., Ribeiro Carrott, M.M.L., Carrott, P.J.M. "Adsorption of volatile organic compounds onto activated carbon cloths derived from a novel regenerated cellulosic precursor" . Journal of Hazardous Materials 177, no. 1-3 (2010) : 175-182.
http://dx.doi.org/10.1016/j.jhazmat.2009.12.014
---------- MLA ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L., Ribeiro Carrott, M.M.L., Carrott, P.J.M. "Adsorption of volatile organic compounds onto activated carbon cloths derived from a novel regenerated cellulosic precursor" . Journal of Hazardous Materials, vol. 177, no. 1-3, 2010, pp. 175-182.
http://dx.doi.org/10.1016/j.jhazmat.2009.12.014
---------- VANCOUVER ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L., Ribeiro Carrott, M.M.L., Carrott, P.J.M. Adsorption of volatile organic compounds onto activated carbon cloths derived from a novel regenerated cellulosic precursor. J. Hazard. Mater. 2010;177(1-3):175-182.
http://dx.doi.org/10.1016/j.jhazmat.2009.12.014