Photocatalytic activities of C–N-doped TiO₂ nanotube array/carbon nanorod composite

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• 作者：Shaohuan Liu ; Lixia Yang ; Shihai Xu ; Shenglian Luo ; Qingyun Cai
• 关键词：C– ; N-doped TiO₂ nanotube ; Carbon nanorod ; Photocurrent ; Photocatalyst
• 刊名：Electrochemistry Communications
• 出版年：2009
• 出版时间：September 2009
• 年：2009
• 卷：11
• 期：9
• 页码：1748-1751
• 全文大小：1466 K

文摘

A C–N-doped TiO₂ nanotube (NT)/carbon nanorod composite is fabricated by chemical vapor deposition (CVD). Carbon nanorods are grown from the TiO₂ NTs, and partly graphitized, while TiO₂ is in the mixture of anatase and rutile. The C–N doping shifts the absorption edge of TiO₂ NTs to the visible light region; the formed carbon nanorods promote the charge carrier transfer from the TiO₂ surface to the electrolyte. Under the simulated solar light irradiation, the C–N-doped TiO₂ NTs show higher photocatalytic activity in the degradation of methyl orange (MO) than the undoped TiO₂ NTs.