Adsorption of Phenol and 2,4‐Dinitrophenol on Activated Carbon Cloth: The Influence of Sorbent Surface Acidity and pH

Authors: Vasiljević, Tatjana1; Spasojević, J.1; Baćić, M.1; Onjia, A.2; Laušević, M.1

Source: Separation Science and Technology, Volume 41, Number 6, 2006 , pp. 1061-1075(15)

Publisher: Taylor and Francis Ltd

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Abstract:

In this work the effect of the activated carbon cloth surface acidity and pH of the solution on phenols adsorption has been studied. Two phenols, widely different in the terms of their pKa values (phenol and 2,4‐dinitrophenol), have been chosen as the model compounds. It has been shown that phenol adsorption was favored by low pH values of solution and high point of zero charge values of activated carbon cloths. The adsorption of 2,4‐dinitrophenol was promoted at very low pH values of solution and it was less influenced by activated carbon cloth surface acidity.

Keywords: Adsorption; activated carbon cloth; phenols; surface properties

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/01496390600588853

Affiliations: 1: Faculty of Technology and Metallurgy, Belgrade, Serbia and Montenegro 2: Vinča Institute of Nuclear Sciences, Belgrade, Serbia and Montenegro

Publication date: January 1, 2006

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