Photocatalytic degradation of methylene blue by TiO₂ film and Au particles-TiO₂ composite film

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• 作者：Chihiro Yogi ; Kazuo Kojima ; Noriyuki Wada ; Hiroshi Tokumoto ; Tomoo Takai ; Tadashi Mizoguchi ; Hitoshi Tamiaki
• 关键词：Titanium dioxide film ; Photocatalysis ; Methylene blue ; Demethylation ; Gold particles
• 刊名：Thin Solid Films
• 出版年：2008
• 期刊代码：78_00406090
• 类别：ph
• 出版时间：1 July 2008
• 卷：516
• 期：17
• 页码：5881-5884
• 文件大小：538 K

摘要

Photodegradation and demethylation reactions of methylene blue (MB) by a TiO₂ photocatalytic film have been studied spectrophotometrically by estimating molar concentration changes of MB and demethylated species in an MB aqueous solution according to the Beer–Lambert law. On the other hand, MB was less demethylated by the reaction with an Au particles-TiO₂ (Au–TiO₂) composite film.