光催化降解水中污染物的研究

pHotocatalysis in degradation of organic contaminants

综合国内外资料,对TiO2光催化降解水中有机污染物的研究现状进行了探讨.由于TiO2化学性质稳定,难溶,无毒,成本低,催化效率高,故在难降解有机物、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.此外,还介绍了光催化技术在实际反应过程中的降解机理、影响因素、存在的问题等,并对TiO2光催化降解水中有机物的研究前景进行了展望.

According to references published home and abroad, the current state of study was analysed for light catalyzing and degradation organic pollutant in water of titanium dioxide. Titanium dioxide has the characteristics of stability, difficult dissolved, innocuity, low cost, and high catalyzed efficiency , so it has an advantage compared with traditional water treatment in degradation organic pollutant and light polluted water, which was significant in environment protection and utilization of solar energy.The degradation mechanism, effected factors and problems of light catalyzing technique in practical reaction were introduced and the outlook for this study was made in this paper.