Effects of silver deposition on 405nm light-driven zinc oxide photocatalyst

A silver-loaded zinc oxide (Ag∕ZnO) photocatalyst was fabricated by chemical deposition, followed by an annealing process using a 405-nm-light-driven ZnO fiber. Silver oxide (Ag2O) was deposited on the ZnO fiber with the same method of chemical deposition using a silver-nitrate solution. Ag2O was al...

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Bibliographic Details
Published in:Journal of vacuum science and technology. B, Nanotechnology & microelectronics Nanotechnology & microelectronics, 2010-01, Vol.28 (1), p.188-193
Main Authors: Seki, Shigeyuki, Sekizawa, Takumi, Haga, Koichi, Sato, Tomoaki, Takeda, Mitsuhiro, Seki, Yoshiyuki, Sawada, Yutaka, Yubuta, Kunio, Shishido, Toetsu
Format: Article
Language:eng ; jpn
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Summary:A silver-loaded zinc oxide (Ag∕ZnO) photocatalyst was fabricated by chemical deposition, followed by an annealing process using a 405-nm-light-driven ZnO fiber. Silver oxide (Ag2O) was deposited on the ZnO fiber with the same method of chemical deposition using a silver-nitrate solution. Ag2O was also decomposed to Ag by annealing at 600°C in a N2 flow. The authors found that the Ag∕ZnO photocatalyst had a fiber structure and that there was 405-nm-light activity. The Ag∕ZnO photocatalyst containing 0.02at.% Ag obtained via a 3.7×10−3mol∕l AgNO3 solution had the highest photocatalytic activity of all the samples.
ISSN:2166-2746
2166-2754
DOI:10.1116/1.3268133