工业水处理 ›› 2006, Vol. 26 ›› Issue (5): 1-4. doi: 10.11894/1005-829x.2006年.26(05).1

• 专论与综述 •    下一篇

掺杂纳米TiO2在难降解废水处理中的研究进展

孙剑辉, 王晓蕾   

  1. 河南师范大学化学与环境科学学院河南省环境污染控制重点实验室, 河南, 新乡 453007
  • 收稿日期:2005-12-04 修回日期:2005-12-04 出版日期:2006-05-20 发布日期:2010-10-01
  • 作者简介:孙剑辉(1957- ),1981 年毕业于河南师范大学,教授。联系电话:0373-3325971,E-mail:sunjh_hj@yahoo.com.cn。
  • 基金资助:

    河南省重点科技攻关项目(0523032200)

Research progress of doped nanometer TiO 2 in wastewater treatment

Sun Jianhui, Wang Xiaolei   

  1. Henan Key Laboratory for Environmental Pollution Control, College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007, China
  • Received:2005-12-04 Revised:2005-12-04 Online:2006-05-20 Published:2010-10-01

摘要:

掺杂可有效改善纳米TiO2的光催化活性及其光利用率,利于光催化技术在工业生产中的应用推广。介绍了掺杂纳米TiO2的光催化机理,总结了常见的掺杂纳米TiO2的制备方法:溶胶-凝胶法、浸渍法等。阐述了TiO2光催化技术在印染废水、农药废水、造纸废水及工业无机废水处理中的应用,并进一步分析了该研究领域所存在的问题,为今后光催化技术的发展方向提出展望:寻求新的掺杂离子、研制掺杂负载型纳米光催化剂和加强降解机理研究等。

关键词: 光催化, 纳米二氧化钛, 废水处理

Abstract:

The doping of TiO2 can improve photocatalytic activities and utilization of sunlight effectively. In this paper, the mechanism of doping in the degradation of organic contaminants and preparation, such as sol-gel method, impregnation method and so on, are reviewed. The application of doped-TiO2 photocatalyst to wastewater treatment, including printing and dying wastewater, paper-making wastewater and inorganic wastewater of industry, are also discussed. Furthermore, the present shortages occurring in this field are analyzed. The development trend of thistechnologyistoseeknewdopedions, anddeveloptheloadinganddopingtypeofcatalyst and strengthen the study of degrading mechanism.

Key words: photocatalysis, nanometer TiO 2 , doping, wastewater treatment

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