The University of Southampton
University of Southampton Institutional Repository

Kinetics and mechanism of the sorption of some aromatic amines onto amberlite IRA-904 anion-exchange resin

Zaki, A. B., El-Sheikh, M. Y., Evans, J. and El-Safty, S. A. (2000) Kinetics and mechanism of the sorption of some aromatic amines onto amberlite IRA-904 anion-exchange resin Journal of Colloid and Interface Science, 221, (1), pp. 58-63. (doi:10.1006/jcis.1999.6553).

Record type: Article


The kinetics of the sorption of aromatic amines such as o-aminophenol (o-AP), o-phenylenediamine (o-PDA), and phenylenediamine (p-PDA) onto Amberlite anion-exchange resin in chloride form was investigated in batch experiments spectrophotometrically at different temperatures. The sorption rate is zero order in all amines sorbed, increasing directly in the order: p-PDA < o-PDA < o-AP, which corresponds to the sequence of the electrostatic contributions to the sorption interactions. The attainment of sorption equilibrium of aromatic amines is seen to be similar. The diffusion coefficients (D) have been calculated by using Fick's equation from the second portions of the sorption/desorption curves; D values ranged from 0.7 to 2.8 x 10(-9) cm(2)/s. These results, reflecting the diffusion mechanism, were ascribed to intraparticle diffusion. Arrhenius parameters for the diffusion process and the thermodynamic quantities for the process of equilibrium sorption have been estimated. The effect of a chemical oxidation reaction on intraparticle diffusion was investigated by measuring the intraparticle diffusion of amines during the redox reaction.

Full text not available from this repository.

More information

Published date: 1 January 2000
Keywords: anion exchange, aromatic amines, sorption, diffusion, kinetics polyurethane foam, ligand-exchanger, sporopollenin, behavior, ion


Local EPrints ID: 18987
ISSN: 0021-9797
PURE UUID: 66a5f0de-607c-4abf-ae05-6d88b8e10ad5

Catalogue record

Date deposited: 18 Jan 2006
Last modified: 17 Jul 2017 16:34

Export record



Author: A. B. Zaki
Author: M. Y. El-Sheikh
Author: J. Evans
Author: S. A. El-Safty

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.