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二氧化钛光催化技术具有低耗能、操作简单、无毒性、降解无选择性、能够彻底降解有机污染物的特点,且因二氧化钛无二次污染并可回收循环利用而备受青睐。介绍了二氧化钛的结构、性能、光催化机理及几种提高二氧化钛光催化性能的改性方法。阐述了二氧化钛在净化空气、污水处理等环境保护领域中的应用和在应用中尚存的一些问题。对二氧化钛在环境领域中的应用前景进行了展望。
Titanium dioxide photocatalytic technology with low energy consumption, simple operation, non-toxic, non-selective degradation, can completely degrade the characteristics of organic pollutants, and titanium dioxide without secondary pollution and recyclable and highly favored. The structure, properties, photocatalytic mechanism of titanium dioxide and several modification methods to improve the photocatalytic activity of titanium dioxide are introduced. The application of titanium dioxide in the field of environmental protection such as purifying air and sewage treatment and some existent problems in application are expounded. The prospects for the application of titanium dioxide in the field of the environment are prospected.