形貌对锐钛矿型TiO2纳米管薄膜光催化性能的影响
收稿日期: 2009-12-30
修回日期: 2010-03-19
网络出版日期: 2010-08-25
基金资助
国家自然科学基金(50871093); 教育部高等学校全国优秀博士学位论文作者专项基金(200554)
Effects of Morphology of Anatase TiO2 Nanotube Films on Photocatalytic Activity
Received date: 2009-12-30
Revised date: 2010-03-19
Online published: 2010-08-25
崔 强, 冯 波, 陈 伟, 汪建新, 鲁 雄, 翁 杰 . 形貌对锐钛矿型TiO2纳米管薄膜光催化性能的影响[J]. 无机材料学报, 2010 , 25(9) : 916 -920 . DOI: 10.3724/SP.J.1077.2010.00916
Five groups of TiO2 nanotube array films with different inner diameters and five groups with different tube lengths were fabricated on titanium by anodization. Morphology was analyzed by scanning electron microscope. The photocatalytic activity of the TiO2 nanotube films crystallized into anatase, was evaluated by the decolorization of methyl orange in aqueous solution under UV light irradiation. The effects of the nanotube diameter and length on the photocatalytic activity were investigated. The reusability of photocatalyst was evaluated through repeated photocatalytic reaction experiment. Results suggest that the TiO2 nanotube films with the diameter of 100nm exhibit the best photocatalytic activity to the degradation of methyl orange, and the length of nanotube has little effect on the photocatalytic activity. Repeated photocatalytic reaction experiment shows that the TiO2 nanotube films have excellent resuability as photocatalyst.
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