A new adsorption-desorption model for water adsorption in activated carbon

Do, D., Junpirom, S and Do, HD (2009) A new adsorption-desorption model for water adsorption in activated carbon. CARBON, 47 6: 1466-1473. doi:10.1016/j.carbon.2009.01.039


Author Do, D.
Junpirom, S
Do, HD
Title A new adsorption-desorption model for water adsorption in activated carbon
Journal name CARBON   Check publisher's open access policy
ISSN 0008-6223
Publication date 2009-02-03
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.carbon.2009.01.039
Open Access Status DOI
Volume 47
Issue 6
Start page 1466
End page 1473
Total pages 8
Editor Thrower, P.A.
Place of publication United Kingdom
Publisher Pergamon
Language eng
Subject C1
030603 Colloid and Surface Chemistry
970103 Expanding Knowledge in the Chemical Sciences
Abstract new model is developed to describe the adsorption and desorption branches of water adsorption in activated carbon. This model is an extension of a previous adsorption model proposed by Do and Do [Do DD, Do HD. A new model for water adsorption in activated carbon. Carbon 2000;38:767-73] to account for desorption. The desorption branch is resulted from the relaxation of water clusters inside the micropore to form superclusters because of the presence of neighbouring clusters. The rates of formation and decomposition of these superclusters are low enough to reflect the relaxation process, and the large hysteresis observed experimentally is resulted from the decomposition of the superclusters to smaller clusters before they are desorbed from the micropores. We test this model against a number of experimental data, and the description is reasonable and the dependence of the model parameters on treatment (oxidation or reduction) is discussed. (C) 2009 Elsevier Ltd. All rights reserved.
Keyword VAPOR ADSORPTION
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Chemical Engineering Publications
 
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Created: Thu, 03 Sep 2009, 18:14:36 EST by Mr Andrew Martlew on behalf of School of Chemical Engineering