工业水处理 ›› 2021, Vol. 41 ›› Issue (10): 8-13. doi: 10.19965/j.cnki.iwt.2020-0765

• 专论与综述 • 上一篇    下一篇

染料敏化TiO2光催化剂的研究进展

汤晓蕾1(),董延茂1,*(),袁妍1,2,杨雨杰3   

  1. 1. 苏州科技大学化学与生命科学学院, 江苏苏州 215009
    2. 苏州科技大学江苏省环境科学与工程重点实验室, 江苏苏州 215009
    3. 苏州科技大学环境科学与工程学院, 江苏苏州 215009
  • 收稿日期:2021-06-22 出版日期:2021-10-20 发布日期:2021-10-26
  • 通讯作者: 董延茂 E-mail:1113101507@qq.com;2547866497@qq.com
  • 作者简介:汤晓蕾(1996-), 硕士研究生。E-mail: 1113101507@qq.com
  • 基金资助:
    苏州区域水质提升与水生态安全保障技术及综合示范项目(2017ZX07205);江苏省环境科学与工程重点实验室开放基金资助项目(Zd1803);江苏省建设系统科技项目(2017ZD238);2020年江苏省研究生培养创新工程研究生科研与实践创新计划项目(SJCX20_1106)

Research development of dye-sensitized technology on TiO2 photocatalyst

Xiaolei TANG1(),Yanmao DONG1,*(),Yan YUAN1,2,Yujie YANG3   

  1. 1. School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou 215009, China
    2. Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
    3. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
  • Received:2021-06-22 Online:2021-10-20 Published:2021-10-26
  • Contact: Yanmao DONG E-mail:1113101507@qq.com;2547866497@qq.com

摘要:

TiO2光催化剂因其耐用性、低成本、低毒性、超亲水性以及出色的化学稳定性,广泛应用于水中有机污染物的降解。但TiO2的带隙(3.2 eV)较宽,导致TiO2的光生电子-空穴对易复合,无法充分利用可见光,限制了其实际应用。染料敏化可将TiO2的光响应范围扩展到可见光区域,提高其光催化活性。综述了染料敏化TiO2光催化剂的原理、染料敏化剂的分类、不同染料敏化剂的应用现状及效果,以期为染料敏化在TiO2光催化剂中的应用提供参考。

关键词: 染料敏化, 二氧化钛, 光催化

Abstract:

TiO2 photocatalyst is widely used in the degradation of organic pollutants in water due to its durability, low cost, low toxicity, super hydrophilicity and excellent chemical stability. However, the wide band gap(3.2 eV) of TiO2 leads to the easy recombination of the photogenerated electron-hole pairs and cannot make full use of visible light, which limits its practical application. Dye sensitization can extend the light response range of TiO2 to visible light region and improve its photocatalytic activity. The principle of dye-sensitized TiO2 photocatalyst, the classification of dye sensitizers, the application status and effects of different dye sensitizers are reviewed, in order to provide a reference for the application of dye-sensitized TiO2 photocatalyst.

Key words: dye sensitization, titanium dioxide, photocatalysis

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