Chemical Engineering Communications, ( ISI ), Volume (203), No (9), Year (2016-2) , Pages (1179-1188)

Title : ( Experimental Investigation on the Removal of p-Toluic Acid from Aqueous Solution using Functionalized Polymeric Sorbent )

Authors: Morteza Davarpanah , Ali Ahmadpour , ,

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Polystyrene-divinylbenzene copolymer (PsDVB) was covalently functionalized with monoethanolamine (MEA), diethanolamine (DEA), and triethanolamine (TEA) by a simple method. The functionalized sorbents were characterized in terms of functionality and morphology, and used for the removal of p-toluic acid (p-TA) from aqueous solution. It was found that DEA-PsDVB has higher adsorption capacity than MEA- and TEA-PsDVB due to more accessible nitro and hydroxyl groups on its surface. Further investigation on the adsorptive properties of DEA-PsDVB indicated that the maximum uptake of p-TA occurred at the optimum pH of 5.3. The kinetics data was successfully represented by the pseudo-first-order model, and the behavior of the adsorption isotherms followed the Freundlich model well. Thermodynamic studies showed that the adsorption of p-TA onto DEA-PsDVB was an endothermic and spontaneous process along with the positive change in entropy. The regeneration of DEA-PsDVB was performed with 0.1 M NaOH solution, and results showed that 99% of the initial capacity was conserved after eight successive adsorption/regeneration cycles.

Keywords

, Adsorption, Ion exchange, Kinetics, Polymers, Thermodynamics, Wastewater
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@article{paperid:1061172,
author = {Davarpanah, Morteza and Ahmadpour, Ali and , },
title = {Experimental Investigation on the Removal of p-Toluic Acid from Aqueous Solution using Functionalized Polymeric Sorbent},
journal = {Chemical Engineering Communications},
year = {2016},
volume = {203},
number = {9},
month = {February},
issn = {0098-6445},
pages = {1179--1188},
numpages = {9},
keywords = {Adsorption; Ion exchange; Kinetics; Polymers; Thermodynamics; Wastewater treatment},
}

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%0 Journal Article
%T Experimental Investigation on the Removal of p-Toluic Acid from Aqueous Solution using Functionalized Polymeric Sorbent
%A Davarpanah, Morteza
%A Ahmadpour, Ali
%A ,
%J Chemical Engineering Communications
%@ 0098-6445
%D 2016

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