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Abstract:

Five different cellulose-based fabrics were used to prepare activated carbon cloths (ACCs) by phosphoric acid activation at pre-established experimental conditions, in an attempt to explore the effect of the precursor's nature on properties of the resulting ACCs. Characterization by elemental analysis, nitrogen (77 K) adsorption, and scanning electron microscopy was carried out. Electrical properties of the developed ACCs were investigated to examine the possibility of regenerating the ACCs by direct electrical heating. Thermal behavior of the raw precursor and of one of the acid-treated fabrics was also studied by thermogravimetric analysis and noticeable differences due to the precursors' characteristics and acid impregnation were detected, respectively. The ACCs derived from a denim precursor showed BET surface area (784 m2 g-1) and total pore volume (0.40 cm3 g-1) lower than those obtained from the four other precursors (1058-1183 m2 g-1, 0.55-0.67 cm3 g-1), whereas carbon content and yield for the former were higher. Morphology and physical appearance of the ACCs were dependent on the raw fabric employed, with most of the samples presenting well-preserved fibres integrity. Besides, the denim-derived ACCs also showed the lowest electrical resistivity (∼8.10-3 Ωm). It was properly correlated with the elemental carbon content and total pore volume of the developed ACCs. © 2008 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Physico-chemical and electrical properties of activated carbon cloths. Effect of inherent nature of the fabric precursor
Autor:Ramos, M.E.; Bonelli, P.R.; Cukierman, A.L.
Filiación:Programa de Investigacion y Desarrollo de Fuentes Alternativas de Materias Primas y Energia-PINMATE, Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Intendente Guiraldes 2620, Ciudad Universitaria, C1428BGA Buenos Aires, Argentina
Cátedra de Farmacotecnia II-Tecnología Especial, Departamento de Tecnología Farmacéutica, Facultad de Farmacia y Bioquímica, Junín 956, C1113AAD Buenos Aires, Argentina
Palabras clave:Activated carbon cloths; Chemical activation; Properties; Adsorption; Carbon; Carbon nanotubes; Charcoal; Chemical activation; Chemical modification; Chemical properties; Electric heating; Electric properties; Electron microscopes; Electron microscopy; Electron optics; Fabrics; Gas adsorption; Gravimetric analysis; Imaging techniques; Microscopic examination; Nitrogen; Phosphoric acid; Photoacoustic effect; Scanning; Scanning electron microscopy; Thermogravimetric analysis; (PL) properties; acid activation; Activated-carbon cloths; BET surface areas; Direct electrical heating; Electrical (electronic) properties; Elemental analysis (EA); Experimental conditions; Physico chemicals; Activated carbon; activated carbon; nitrogen; adsorption; article; chemical composition; electric resistance; electricity; heating; physical chemistry; porosity; priority journal; scanning electron microscopy; textile; thermogravimetry
Año:2008
Volumen:324
Número:1-3
Página de inicio:86
Página de fin:92
DOI: http://dx.doi.org/10.1016/j.colsurfa.2008.03.034
Título revista:Colloids and Surfaces A: Physicochemical and Engineering Aspects
Título revista abreviado:Colloids Surf. A Physicochem. Eng. Asp.
ISSN:09277757
CODEN:CPEAE
CAS:activated carbon, 64365-11-3, 82228-96-4; nitrogen, 7727-37-9
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09277757_v324_n1-3_p86_Ramos

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Citas:

---------- APA ----------
Ramos, M.E., Bonelli, P.R. & Cukierman, A.L. (2008) . Physico-chemical and electrical properties of activated carbon cloths. Effect of inherent nature of the fabric precursor. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 324(1-3), 86-92.
http://dx.doi.org/10.1016/j.colsurfa.2008.03.034
---------- CHICAGO ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L. "Physico-chemical and electrical properties of activated carbon cloths. Effect of inherent nature of the fabric precursor" . Colloids and Surfaces A: Physicochemical and Engineering Aspects 324, no. 1-3 (2008) : 86-92.
http://dx.doi.org/10.1016/j.colsurfa.2008.03.034
---------- MLA ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L. "Physico-chemical and electrical properties of activated carbon cloths. Effect of inherent nature of the fabric precursor" . Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 324, no. 1-3, 2008, pp. 86-92.
http://dx.doi.org/10.1016/j.colsurfa.2008.03.034
---------- VANCOUVER ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L. Physico-chemical and electrical properties of activated carbon cloths. Effect of inherent nature of the fabric precursor. Colloids Surf. A Physicochem. Eng. Asp. 2008;324(1-3):86-92.
http://dx.doi.org/10.1016/j.colsurfa.2008.03.034