Gas-supported high-photoactivity TiO 2 nanotubes
Gas-supported high-photoactivity TiO 2 nanotubes
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DOI：
10.1155/2012/909473
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发表时间：
2012
影响因子：
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通讯作者：
Sheng Wang;Tao Wang;Yuanwei Ding;Youfeng Xu;Qiying Su;Yanlong Gao;Guohua Jiang;Wenxing Chen
中科院分区：
文献类型：
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作者：
Sheng Wang;Tao Wang;Yuanwei Ding;Youfeng Xu;Qiying Su;Yanlong Gao;Guohua Jiang;Wenxing Chen
通过改变水热条件和后热处理温度，成功制备了二氧化硅包覆的二氧化钛纳米管。讨论了气载工艺对纳米管形貌、结晶度和光催化活性的影响。结果表明，在水热处理（180°C/9 h）和煅烧（650°C/2 h）条件下制备的样品表现出完美的开口管状形貌和增加的结晶度。样品的光催化活性比TiO 2纳米粒子高5倍。
By changing hydrothermal condition and post-heat-treatment temperature, silica-coated TiO2 nanotubes are obtained successfully. The effects of gas-supported process on tubular morphology, crystallinity, and photocatalytic activity are discussed. It is found that the sample prepared at hydrothermal treatment (180°C/9 h) and calcination (650°C/2 h) shows perfect open-ended tubular morphology and increased crystallinity. The photoactivity of the sample is proved to be 5 times higher than that of TiO2 nanoparticles.