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Preparation of surface-modified TiO2 nanoflower film as efficient visible-active photocatalysts

  • Ya Hui Wu
  • , Ming Ce Long
  • , Chao Chen
  • , Wei Min Cai
  • Harbin Institute of Technology
  • Shanghai Jiao Tong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The TiO2 films were synthesized on Ti substrates by a novel method. Titanium metal was directly oxidized by hydrogen peroxide to generate a rough amorphous film and then hydrothermal process transformed the film to crystalline nanoflower TiO2 film. The obtained film can be modified by calcination with urea and the modified film can keep the nanoflower structure. According to the XPS data, the urea-induced modification is surface-modification rather than N-doping. Compared to the un-modified film, the response scope of the modified film extends to the visible light region. Photocatalytic activity of films were investigated by degrading methyl orange (MO) under visible light. As a result, 47% of MO was decomposed by modified film in 3 hours.

源语言英语
主期刊名Advances in Key Engineering Materials
406-411
页数6
DOI
出版状态已出版 - 2011
已对外发布
活动2011 International Conference on Key Engineering Materials, ICKEM 2011 - Sanya, 中国
期限: 25 3月 201127 3月 2011

出版系列

姓名Advanced Materials Research
214
ISSN(印刷版)1022-6680

会议

会议2011 International Conference on Key Engineering Materials, ICKEM 2011
国家/地区中国
Sanya
时期25/03/1127/03/11

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