摘要
以半导体催化剂TiO2为例,讨论了光催化降解有机污染物的机理,介绍了其晶型、粒径大小和制备方法等对催化活性的影响。同时讨论了光强、污染物溶液的pH值、温度、O2,O3及H2O2等因素对反应速度的影响。总结了半导体光催化降解在消除重要的水污染物(有色燃料、氯代物和芳香类化合物、农药、表面活性剂)方面的应用。
The mechanism and application of semiconductor photocatalyzed degradation of organic pollutant in the environment was introduced. The influence of the type of crystal, the size of particles and the method of preparation on the catalytic activity of TiO2 as a photo-catalyst and the affects of the initial concentration of reactant; pH and temperature of solution, O2, O3 and H2O2 on the reaction rate was discussed as well.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2005年第2期228-234,共7页
Acta Energiae Solaris Sinica
关键词
半导体
光催化
有机污染物降解
Photocatalysis
Semiconductor materials
Titanium dioxide
