光催化氧化技术在水处理中的研究进展

Research development of photocatalytic oxidation in the water treatment

介绍了二氧化钛(TiO2)光催化氧化的机理,阐述了TiO2光催化氧化技术在降解水中有机污染物、无机污染物及饮用水净化和垃圾渗滤液处理中的研究进展,并对TiO2光催化氧化技术的研究前景进行了展望。二氧化钛(TiO2)化学性质稳定、难溶、无毒、成本低、催化效率高,因此光催化氧化技术在难降解有机物、微污染水等处理中相对于其他传统水处理工艺具有一定的优势,是一种很有发展前途的水处理技术,对太阳能的利用和环境保护有重要的意义,可以预见光催化氧化将成为新型有效的水处理手段。

The paper reviews the basic mechanism of titanium dioxide photocatalytic oxidation. Expounding the research development of TiO2 photocatalytic oxidation in the degradation of organic pollutants, inorganic pollutants and tap water purification and landfill leachate treatment. And the outlook for this study was also made in this paper. Titanium dioxide has the characteristics of stability, difficult dissolved, innocuity, lowcost, and high catalyzed efficiency, so it has an advantage compared with traditional water treatment in degradation organic pollutant and light pollute water, which was significant in environment protection and utilization of solar energy. We can foresee photocatalytic oxidation will be a new and effective measure in the water treatment.