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Adsorption and desorption kinetics for hydrophilic and hydrophobic vapors on activated carbon

Lookup NU author(s): Dr Ashleigh Fletcher, Emeritus Professor Mark ThomasORCiD

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Abstract

Adsorption dynamics are of fundamental importance in applications of adsorbents in real situations. The adsorption/desorption characteristics of a series of adsorbates, with varying hydrophilic/hydrophobic and structural characteristics, for activated carbon BAX950, were investigated for temperatures in the range 288-323 K. These data provide a comprehensive kinetic study of adsorption/desorption for an activated carbon. The results are discussed in relation to the adsorbent pore structure and functional group concentration, adsorptive structure and adsorption mechanism. The study provides evidence for a compensation effect where activation energy and ln(pre-exponential factor) parameters obtained from the Arrhenius equation exhibit a linear correlation. © 2005 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Fletcher AJ, Yuzak Y, Thomas KM

Publication type: Article

Publication status: Published

Journal: Carbon

Year: 2006

Volume: 44

Issue: 5

Pages: 989-1004

ISSN (print): 0008-6223

ISSN (electronic): 1873-3891

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.carbon.2005.10.020

DOI: 10.1016/j.carbon.2005.10.020

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