Document Detail


Conduction band energy level control of titanium dioxide: toward an efficient visible-light-sensitive photocatalyst.
MedLine Citation:
PMID:  20429504     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Through the use of a strategy that involves narrowing the TiO(2) band gap by shifting its conduction band positively and utilizing the catalytic activity of photoproduced Cu(I) for oxygen reduction, a novel visible-light-sensitive TiO(2) photocatalyst, Cu(II)-grafted Ti(1-3x)W(x)Ga(2x)O(2), was designed and synthesized. The Cu(II)/Ti(1-3x)W(x)Ga(2x)O(2) photocatalyst produced high activity under visible-light irradiation. In fact, it decomposed 2-propanol to CO(2) via acetone under visible light (>400 nm) with a high quantum efficiency of 13%. The turnover number for this reaction exceeded 22, indicating that it functioned catalytically.
Authors:
Huogen Yu; Hiroshi Irie; Kazuhito Hashimoto
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  132     ISSN:  1520-5126     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-05-20     Completed Date:  2010-08-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6898-9     Citation Subset:  -    
Affiliation:
Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan.
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