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纳米TiO2在废水处理中的光催化活性
引用本文:王晓钰,祁巧艳,孙剑辉.纳米TiO2在废水处理中的光催化活性[J].工业水处理,2005,25(1):6-9.
作者姓名:王晓钰  祁巧艳  孙剑辉
作者单位: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
基金项目:河南省重点科技攻关项目,编号:0323030400
摘    要:介绍了纳米TiO2光催化降解废水中有机污染物的机理,系统评述了纳米TiO2的粒径、晶型、掺杂、负载和废水处理体系中催化剂投加量、pH值、外加氧化剂、无机盐及光强等因素对其催化活性的影响。展望了纳米TiO2在降解工业废水处理中的应用前景,认为:提高纳米TiO2的光催化效率,扩展纳米TiO2的吸收光谱范围和开发纳米TiO2的负载技术是光催化法处理废水应用研究领域今后的主要发展方向。

关 键 词:纳米TiO2  光催化  废水处理
文章编号:1005-829X(2005)01-0006-04
修稿时间:2004年4月7日

Photocatalytic activity of nanometer TiO2 in wastewater treatment
Wang Xiaoyu,Qi Qiaoyan,Sun Jianhui.Photocatalytic activity of nanometer TiO2 in wastewater treatment[J].Industrial Water Treatment,2005,25(1):6-9.
Authors:Wang Xiaoyu  Qi Qiaoyan  Sun Jianhui
Abstract:The photocatalytic mechanism of degrading the organic pollutant in wastewater by nanometer TiO2 is introduced. The influential factors on the photocatalytic activity of nanometer TiO2, such as particle size, crystallite, doping, load of nanometer TiO2, and photocatalyst content, pH value, adding oxidizer, inorganic salts, light intensity, etc. in the system of wastewater treatment are also discussed. Potential applications of nanometer TiO2 in industrial wastewater treatment are previewed. It is considered that the development direction in the future is to enhance the photocatalytic efficiency of nanometer TiO2, expanding the scope of its absorption spectrum and developing its load technology.
Keywords:nanometer TiO2  photocatalysis  wastewater treatment
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