Photocatalytic activity of visible light-responsive TiO2 thin films deposited on various anodized Ti-metal substrates by a RF magnetron sputtering method

被引:0
作者
Tae-Ho Kim
Masaya Matsuoka
Masaaki Kitano
Takashi Kamegawa
Yoshihisa Itoh
Masato Takeuchi
Masakazu Anpo
机构
[1] Graduate School of Engineering,Department of Applied Chemistry
[2] Yield Corporation,undefined
来源
Research on Chemical Intermediates | 2010年 / 36卷
关键词
Visible light; TiO; thin film; Anodized Ti-metal substrates; Magnetron sputtering deposition method; Oxidation of organic compounds; Oxidation of ammonia;
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摘要
Visible light-responsive TiO2 (Vis-TiO2) thin film has been deposited on two different kinds of anodized Ti-metal substrates, i.e., plate-type Titanystar (P-Titanystar) or non-woven fabric Titanystar (N-Titanystar) by a radio-frequency magnetron sputtering (RF-MS) method. These Vis-TiO2 thin film photocatalysts (Vis-TiO2/P-Titanystar and Vis-TiO2/N-Titanystar) showed high activity for the oxidation of 2-propanol in water under UV light irradiation while Vis-TiO2/N-Titanystar showed higher activity than Vis-TiO2/P-Titanystar. Furthermore, photocatalytic activity of Vis-TiO2/N-Titanystar was enhanced by the Pt deposition by an RF-MS deposition method. Pt loaded Vis-TiO2/N-Titanystar (Pt-Vis-TiO2/N-Titanystar) acted as an efficient photocatalyst for the oxidation of methanol vapor under UV light irradiation even in a flow system. Moreover, it was found that Pt-Vis-TiO2/N-Titanystar is an effective photocatalyst for the oxidation of various organic compounds in gas phase or ammonia gas even under visible light irradiation (λ > 420 nm) at 293 K.
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页码:319 / 326
页数:7
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