J. Am. Chem. Soc., 129 (40), 12090 -12091, 2007. 10.1021/ja075184x S0002-7863(07)05184-0
Web Release Date: September 19, 2007

Copyright © 2007 American Chemical Society

Silicon Quantum Dots: A General Photocatalyst for Reduction, Decomposition, and Selective Oxidation Reactions

Zhenhui Kang, Chi Him A. Tsang, Ning-Bew Wong,* Zhendong Zhang, and Shuit-Tong Lee*

Centre of Super Diamond and Advanced Films, Department of Biology and Chemistry, and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China

bhnbwong@cityu.edu.hk; apannale@cityu.edu.hk

Received July 12, 2007

Abstract:

The 1-2 nm SiQDs can photocatalyze CO2 reduction and dye (methyl red) degradation, while 3-4 nm SiQDs can photocatalyze selective oxidation of benzene to phenol, owing to tunable band gap and excellent photoconductive properties of SiQDs.

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