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Surface photodeposition of metal oxides by decomposition of several group IVA organometallics (benzyltrimethylsilanes and benzyltrimethylstannanes) on TiO2

Authors
Journal
Journal of Photochemistry and Photobiology A Chemistry
1010-6030
Publisher
Elsevier
Publication Date
Volume
61
Issue
1
Identifiers
DOI: 10.1016/1010-6030(91)85083-s

Abstract

Abstract The photocatalytic decomposition of several substituted benzyltrimethylsilanes and benzyltrimethylstannanes on band gap irradiated TiO 2 powders suspended in acetonitrile causes the deposition of SiR x and SiO 2 and of SnR x and SnO 2 respectively, on the photoactive surface. A mechanism consistent with interfacial trapping of a photogenerated electron—hole pair can successfully rationalize the observed kinetics and substituent effects.

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