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Title: Alumina-carbon composite as an effective adsorbent for removal of Methylene Blue and Alizarin Red-s from aqueous solution
Authors: Raut, Pranay A
Dutta, Monal
Sengupta, Sonali
Basu, Jayanta Kumar
Keywords: Adsorption isotherm;Alizarin Red-S;Alumina-carbon composite;Methylene Blue
Issue Date: Jan-2013
Publisher: NISCAIR-CSIR, India
Abstract: An alumina-carbon composite has been prepared by in situ precipitation of aluminium hydroxide on the surface of commercial activated carbon followed by calcinations. The adsorption characteristics of the as-synthesized material are studied using Methylene Blue and Alizarin Red-s. The adsorption equilibrium for Methylene Blue and Alizarin Red-s are well represented by the Redlich-Peterson and Tempkin isotherms respectively. The maximum adsorption capacity for Methylene Blue is found to be 1152.30 mg/g at pH 8 and that for Alizarin Red-s is 522.81 mg/g at pH 5. The adsorption kinetics for both the dyes has been explained by the pseudo-second-order model.
Page(s): 15-20
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.20(1) [January 2013]

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