高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (11): 1910.

• 研究简报 • 上一篇    下一篇

Sn4+掺杂对TiO2纳米颗粒膜光催化降解苯酚活性的影响

曹亚安1, 沈东方4, 张昕彤2, 孟庆巨3, 马颖1, 吴志芸, 白玉白2, 李铁津2, 姚建年2   

  1. 1. 中国科学院化学研究所分子科学中心, 北京 100101;
    2. 吉林大学化学系, 长春 130023;
    3. 吉林大学电子科学系, 长春 130023;
    4. 中国人民解放军空军第二航空学院, 长春 130022
  • 收稿日期:2000-09-12 出版日期:2001-11-24 发布日期:2001-11-24
  • 通讯作者: 姚建年(1954年出生),教授,博士生导师,从事光电功能材料研究.
  • 基金资助:

    国家自然科学基金(批准号:59620167);中国科学院重大基础研究项目资助

Effect of Sn-doping on Photocatalytic Activity of TiO2 Film for Degradation of Phenol

CAO Ya-An1, SHEN Dong-Fang4, ZHANG Xin-Tong2, MENG Qing-Ju3, MA Ying1, WU Zhi-Yun, BAI Yu-Bai2, LI Tie-Jin2, YAO Jian-Nian2   

  1. 1. Centerf or Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
    2. Departmentof Chemistry, Jilin University, Changchun 130023, China;
    3. Department of Electronic Engineering, Jilin University, Changchun, 130023 China;
    4. The Second Air Force College of PLA, Changchun 130022, China
  • Received:2000-09-12 Online:2001-11-24 Published:2001-11-24

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关键词: PECVD, TiO2纳米颗粒膜, 掺杂, 光催化

Abstract: We prepared TiO2(anatase) and Sn-doped TiO2 nanoparticlate film by Plasma enhanced Chemical Vapor Deposition(PECVD) method. XR-Dand XP-Sexperiments showed that Sn was doped into the lattice of TiO2 with a ratio of n-(Sn): n-(Ti)=1:10. Sn-doping largely enhanced the photocatalytic activity of TiO2 film for phenol degradation. The enhancement in photoactivity by doping was discussed, based on the characterization with AFM, FTIRand EFISPS. Sn-doping produced localized level of Sn 4+ in the band gap of TiO2, about 0.4 eVbelow the conduction band, which could capture photogenerated electrons and reduce O2 adsorbed on the surface of TiO2 film, thus accelerated the photocatalytic reaction.

Key words: PECVD, TiO2 nanoparticulate film, Doping, Photocatalysis

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