固定化光催化技术及其适用水处理反应器研究进展

Study of the Immobilized Photocatalytic Technique and Its Special Reactor

光催化技术因其具有较高的催化活性和低廉的价格已经在水处理中被广泛采用,但是粉末催化剂的明显缺点制约了其工业化应用,因此固定化光催化技术应运而生。通过收集国内外资料,对于光催化固定技术应用的两个关键因素——固定方法和适用的反应器的发展进行了介绍。当固定的同时催化剂活性不会大幅下降,且采用适合于该种载体的反应器,固定化光催化技术在水处理领域有着广阔的应用前景。

Because of the economics and efficiency,the photocatalytic technique has been widely used in water purification. However,the industrial application of powder photocatalyst was confined to its obvious disadvantages. Therefore,the immobilized photocatalytic technique was emerged. In this paper,the two key factors to the immobilized photocatalytic technique——immobilization method and the photocatalytic reactor for immobilized catalyst specially,were introduced and discussed. When the activity of the immobilized catalyst decreased little and the appropriate reactor was adopted,the immobilized photocatalytic technique would have better prospect in the application in water purification.