Nanosize Semiconductors for Photooxidation

Authors: Abrams, B.; Wilcoxon, J.

Source: Critical Reviews in Solid State and Material Sciences, Volume 30, Number 3, July-September 2005 , pp. 153-182(30)

Publisher: Taylor and Francis Ltd

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Abstract:

Nanosized semiconductors (semiconductor clusters) have the potential to revolutionize the fields of photooxidation and photocatalysis through the combined effects of quantum confinement and their unique surface morphologies. Photocatalytic oxidation as applied to environmental remediation (i.e., detoxification of chemical wastes), green/sustainable chemistry, as well as alternative energy paths (i.e., splitting of H 2 O to produce H 2 ) has already experienced improvements in activity, efficiency, and stability through the use of semiconductor nanoclusters based on materials such as TiO 2 , MoS 2 , WS 2 , MoSe 2 , FeS 2 , and SnO 2 . Issues such as improved control of size and surface chemistry play an important role in the success of these semiconductor nanocatalysts. This review explores the effect of advances in the fields of nanoscience and photocatalysis for current and future applications.

Keywords: photocatalysis; semiconductor nanoclusters; quantum confinement; surface effects; MoS2

Document Type: Research article

DOI: http://dx.doi.org/10.1080/10408430500200981

Affiliations: 1: Sandia National Laboratories, Albuquerque, New Mexico, USA

Publication date: 2005-07-01