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Artículo

Acid-activated Carbons from Peanut Shells: Synthesis, Characterization and Uptake of Organic Compounds from Aqueous Solutions

Romero, Luis Cesar; Bonomo, AntonioIcon ; Gonzo, Elio EmilioIcon
Fecha de publicación: 07/2003
Editorial: Multi-Science Publishing
Revista: Adsorption Science & Technology
ISSN: 0263-6174
e-ISSN: 2048-4038
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ingeniería Química

Resumen

Activated carbon with a high adsorption capacity for the removal of organic compounds from aqueous solutions was made from phosphoric acid-activated peanut shells. Adsorption isotherms for the uptake of phenol, iodine, Methylene Blue and tannic acid were obtained at 22°C. Freundlich, Langmuir and previously developed equation models all explained the experimental data satisfactorily. Further analysis using the Dubinin-Radushkevich equation showed that the maximum micropore volume accessible to the adsorbate decreased as the molecular size increased, suggesting a molecular sieve or gate effect. A comparison was made with the micropore volume as determined by nitrogen adsorption at -196°C. The results presented indicate that peanut shell residues provide a suitable option for the preparation of activated carbon with good surface properties and the ability to remove organic compounds from aqueous solutions.
Palabras clave: Peanut Shells , Activated Carbons , Adsorption
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution 2.5 Unported (CC BY 2.5)
Identificadores
URI: http://hdl.handle.net/11336/77970
DOI: http://dx.doi.org/10.1260/026361703772776402
URL: https://journals.sagepub.com/doi/10.1260/026361703772776402
Colecciones
Articulos(INIQUI)
Articulos de INST.DE INVEST.PARA LA INDUSTRIA QUIMICA (I)
Citación
Romero, Luis Cesar; Bonomo, Antonio; Gonzo, Elio Emilio; Acid-activated Carbons from Peanut Shells: Synthesis, Characterization and Uptake of Organic Compounds from Aqueous Solutions; Multi-Science Publishing; Adsorption Science & Technology; 21; 7; 7-2003; 617-626
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