Organophilicity of MCM-41 adsorbents studied by adsorption and temperature-programmed desorption

Zhao, X. S., Lu, G. Q. and Hu, X. (2001) Organophilicity of MCM-41 adsorbents studied by adsorption and temperature-programmed desorption. Colloids And Surfaces A-physicochemical And Engineering Aspects, 179 2-3: 261-269. doi:10.1016/S0927-7757(00)00646-4


Author Zhao, X. S.
Lu, G. Q.
Hu, X.
Title Organophilicity of MCM-41 adsorbents studied by adsorption and temperature-programmed desorption
Journal name Colloids And Surfaces A-physicochemical And Engineering Aspects   Check publisher's open access policy
ISSN 0927-7757
Publication date 2001
Sub-type Article (original research)
DOI 10.1016/S0927-7757(00)00646-4
Volume 179
Issue 2-3
Start page 261
End page 269
Total pages 9
Editor P. Somasundaran
H. Moehwald
Place of publication Netherlands
Publisher Elsevier
Collection year 2001
Language eng
Subject C1
250102 Chemistry of Catalysis
670903 Clay products
Abstract In this paper, the organophilic property of MCM-41 was studied and compared with hydrophobic silicalite-l using adsorption and temperature-programmed desorption (TPD) methods. The surface heterogeneity of MCM-41 was evaluated in terms of activation energy for desorption (E-d) and isosteric heat of adsorption (q(st)). Results show that MCM-41 has a higher affinity to polar organic compounds than to non-polar organics while silicalite-l has a higher affinity to non-polar organic compounds than to polar organics. This organophilic behaviour of MCM-41 is attributed to its surface heterogeneity. (C) 2001 Elsevier Science B.V. All rights reserved.
Keyword Chemistry, Physical
Mcm-41
Organophilicity
Adsorption
Tpd
Vocs
Mesoporous Molecular-sieves
Pore Structure
Zeolites
Silicalite
Catalysis
Sorbates
Sorption
Alkanes
Carbon
Zsm-5
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Tue, 14 Aug 2007, 16:08:03 EST