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Benzene displacement on imogolite

Authors
  • Wilson, Michael A.1
  • Lee, Garry S. H.1
  • Taylor, Renee C.1
  • 1 University of Western Sydney, Dean’s Unit, College of Science, Technology and Environment, Locked Bag 1797, Penrith South DC, NSW, 1792, Australia , Penrith South DC (Australia)
Type
Published Article
Journal
Clays and Clay Minerals
Publisher
Springer International Publishing
Publication Date
Jun 01, 2002
Volume
50
Issue
3
Pages
348–351
Identifiers
DOI: 10.1346/00098600260358111
Source
Springer Nature
Keywords
License
Yellow

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.

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