天然沸石负载TiO_2光催化降解双酚A的研究

Study on Photocatalytic Degradation of Bisphenol A by Natural Zeolite of TiO_2 Loaded

以沸石负载TiO_2为催化剂,对光催化降解环境内分泌干扰物双酚A(BPA)进行了研究。阐述了沸石负载TiO_2的制备过程,研究了溶液的催化剂投加量、初始浓度、pH值、不同试验条件、负载次数、外加氧化剂H_2O_2对降解效率的影响,并对降解过程的反应动力学进行了探讨,结果表明沸石负载TiO_2对BPA有较好的光降解效果,且光降解反应符合一级反应动力学规律。

The photocatalytic degradation of bisphenol A, one of the endocrine disrupting chemicals （EDCs） was studied. The photocatalyst was TiOE/zeolite. The influences of initial concentrations of BPA, amount of TiO2/zeolite, initial pH value, kinds of experiment condition, loads number of times and the added quantity of H2O2 on degradation efficiency of BPA were investigate and the photocatalytic reaction kinetic was discussed. The results indicated that TiO2 loaded natural zeolite can improve photocatalytic degradation of BPA and the photodcadation of BPA was a first order reaction.