纳米TiO_2光催化降解有机物的机理及其影响因素的研究

STUDY ON THE MECHANISM AND EFFECTS ON NANO-TiO_2 PHOTOCATALYISI DEGRADATION ORGANIC COMPOUNDS

对纳米TiO2 光催化降解水中有机物的机理进行了研究 ,并对溴苯酚降解为目标反应 ,系统分析了紫外光强度、TiO2 浓度、温度、溶液的pH值以及杂质等对光催化降解为溴苯酚程度的影响。优化这些因素可以提高纳米TiO2 光催化降解率。

Selection for the photocatalytic degradation of p-bromophenol were investigated .The mechanism of nano-TiO 2 catalysis degrading organic compounds in waster water and some effects on photocatalysis degradation rate including light intensity,TiO 2 concentration,temperature,pH value of waster water and impurities ect,were also studied.Accordingly,it is necessary to optimize those effects to improve the photocatalysis degradation rate.