Mathematical modelling and simulation of adsorption processes at spherical microparticles

Chevallier, François G., Sljukic, Biljana, Wildgoose, Gregory, Jiang, Li, Jones, Timothy G. J. and Compton, Richard G. (2006) Mathematical modelling and simulation of adsorption processes at spherical microparticles. ChemPhysChem, 7 (3). pp. 697-703. ISSN 1439-4235

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Abstract

A model for the adsorption process at spherical microparticles under transient diffusion conditions was developed and solved using numerical simulation. This model allowed us to demonstrate that the system is controlled by 2 main dimensionless parameters: the adsorption rate const. ka' and the satn. parameter ß. Anal. models for the adsorption process at spherical microparticles under steady-state mass transport conditions were derived. These models use previously developed empirical relationships for the calcn. of the mass transfer coeff. (kc). The properties of the system were studied for both the case where mass transport is described by diffusion only and the case where it is the result of a coupled diffusion/convection process. These math. tools were then used to analyze the results obtained for the uptake of CuII by glassy carbon powder modified with the monomer L-cysteine Me ester and to ext. a min. value for the adsorption rate const. which was found to be of the order of 104 cm s1. [on SciFinder(R)]

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Rachel Smith
Date Deposited: 23 Jun 2011 15:46
Last Modified: 07 May 2019 15:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/33004
DOI: 10.1002/cphc.200500546

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