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Benzene Displacement on Imogolite

Published online by Cambridge University Press:  01 January 2024

Michael A. Wilson ,
Garry S. H. Lee  and
Renee C. Taylor
Michael A. Wilson*
Affiliation:
Dean's Unit, College of Science, Technology and Environment, University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW 1792, Australia
Garry S. H. Lee
Affiliation:
Dean's Unit, College of Science, Technology and Environment, University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW 1792, Australia
Renee C. Taylor
Affiliation:
Dean's Unit, College of Science, Technology and Environment, University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW 1792, Australia
*
*E-mail address of corresponding author: ma.wilson@uws.edu.au
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Abstract

The adsorption of 13C-labeled benzene on imogolite has been studied on samples which had been evacuated and then heated to remove water below their decomposition point. After adsorption of labeled benzene, the samples were studied by nuclear magnetic resonance using non-spinning techniques. The results show that benzene can occupy more than one pore type and that water does not displace benzene from the intra-tube pores at atmospheric pressure. A further finding is that there are at least two types of adsorbed benzene in so called inter-tube pores, one of which is more rigidly held than that in intratube pores. The presence of disordered materials at the edge of pores could also play a role in altering the pore mouth thereby creating new types of pores. Moreover, where two tubes do not pack properly, space might be created where an adsorbed molecule may bind more tightly than expected in a conventional pore.

Keywords

BenzeneImogoliteSolid-state Nuclear Magnetic ResonancePores
Type
Research Article
Information
Clays and Clay Minerals , Volume 50 , Issue 3 , June 2002 , pp. 348 - 351
Copyright
Copyright © 2002, The Clay Minerals Society

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