形貌对锐钛矿型TiO2纳米管薄膜光催化性能的影响

doi:10.3724/SP.J.1077.2010.00916

无机材料学报 ›› 2010, Vol. 25 ›› Issue (9): 916-920.DOI: 10.3724/SP.J.1077.2010.00916 CSTR: 32189.14.SP.J.1077.2010.00916

形貌对锐钛矿型TiO₂纳米管薄膜光催化性能的影响

崔强, 冯波, 陈伟, 汪建新, 鲁雄, 翁杰

(西南交通大学材料先进技术教育部重点实验室, 材料科学与工程学院, 成都 610031)

收稿日期:2009-12-30 修回日期:2010-03-19 出版日期:2010-09-20 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

CUI Qiang, FENG Bo, CHEN Wei, WANG Jian-Xin, LU Xiong, WENG Jie

(Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China)

Received:2009-12-30 Revised:2010-03-19 Published:2010-09-20 Online:2010-08-25

摘要/Abstract

摘要：

采用阳极氧化法在纯钛表面制备了5组平均内径不同以及5种管长不同的TiO₂纳米管阵列薄膜, 应用SEM对管径进行了表征. 将之烧结成锐钛矿型后通过光催化降解甲基橙溶液研究管径与管长的大小对其光催化活性的影响, 通过重复催化实验研究其重复使用的效果. 结果表明: 管径为100nm时催化剂催化降解甲基橙的效果最好, 管长则基本不影响纳米管薄膜的催化活性. 重复催化实验表明, TiO₂纳米管薄膜有很好的重复使用效果.

关键词: TiO₂纳米管, 阳极氧化, 光催化, 管径

Abstract:

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 TiO₂nanotube films have excellent resuability as photocatalyst.

Key words: TiO₂ nanotube, anodic oxidation, photocatalytic activity, nanotube diameter

中图分类号:

TQ426
O646

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.

CUI Qiang, FENG Bo, CHEN Wei, WANG Jian-Xin, LU Xiong, WENG Jie. Effects of Morphology of Anatase TiO₂ Nanotube Films on Photocatalytic Activity[J]. Journal of Inorganic Materials, 2010, 25(9): 916-920.

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形貌对锐钛矿型TiO₂纳米管薄膜光催化性能的影响

Effects of Morphology of Anatase TiO₂ Nanotube Films on Photocatalytic Activity

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