Effective photocatalytic decomposition of VOC under visible-light irradiation on N-doped TiO₂ modified by vanadium species

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• 作者：Shinya Higashimoto ; Wataru Tanihata ; Yoshinori Nakagawa ; Masashi Azuma ; Hiroyoshi Ohue ; Yoshihisa Sakata
• 关键词：N-doped TiO₂ ; Photocatalyst ; Visible light ; Vanadium ; VOC ; Decomposition ; ESR ; Photocharged potential ; Redox mediator
• 刊名：Applied Catalysis A: General
• 出版年：2008
• 出版时间：15 May 2008
• 年：2008
• 卷：340
• 期：1
• 页码：98-104
• 全文大小：774 K

文摘

Photocatalytic activity of nitrogen-doped TiO₂ (N-TiO₂) will greatly increase by adding vanadium species for the decomposition of various volatile organic compounds (VOC) under both visible light and UV-light irradiation. The added vanadium species having oxidation states between +IV and +V that interact with surface N-TiO₂ play significant roles as redox mediators in the enhancement of photocatalytic activity.