Modified mesoporous silicates for the adsorption and decomposition of toxic gases

Majid Naderi; Jessica L. Pickett; Matt J. Chinn; D. Robert Brown

doi:10.1039/B110111K

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Majid Naderi,^a Jessica L. Pickett,^b Matt J. Chinn^b and D. Robert Brown*^a

Author affiliations

* Corresponding authors

^a Centre for Applied Catalysis, Department of Chemical and Biological Sciences, University of Huddersfield, Huddersfield, UK
E-mail: d.r.brown@hud.ac.uk

^b Dstl Porton Down, Salisbury, Wiltshire, UK

Abstract

New adsorbents based on MCM-41 have been developed for the adsorption and decomposition of HCN and CNCl. Adsorption of CNCl is provided by diaminoalkylsilane tethers bound to the surface. Reactivity towards HCN is provided by Cu²⁺ ions complexed by the diamines. Overall reactivity towards the two gases depends on the balance between free amine and Cu²⁺ concentrations. The performance of these adsorbents is superior to that of carbon-based adsorbents in which alkylamine and copper(II) salt are physisorbed on the carbon surface.

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Supplementary files

Elemental analyses for the MCM-41 and carbon-based adsorbents DOC (25K)

Article information

DOI: https://doi.org/10.1039/B110111K
Article type: Paper
Submitted: 06 Nov 2001
Accepted: 25 Jan 2002
First published: 05 Mar 2002

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J. Mater. Chem., 2002,12, 1086-1089

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