负载型酞菁用于水和空气中有机污染物的可见光催化降解研究进展

Immobilized phthalocyanines for visible light photodegradation of organic pollutants in water and air

负载化可以有效提高酞菁的光稳定性,降低其在溶液中的聚集,同时解决其回收再利用的问题,但酞菁负载的方法及载体种类众多,如何选择适合的负载方法和载体是应用过程中存在的重要问题。本文介绍了酞菁类光催化剂的结构特性和光催化机制,综述了用于水和空气中有机污染物可见光催化降解的负载型酞菁的载体种类及负载方法,对比分析了各种载体以及负载方法的优势、不足和适用范围,指出需要根据酞菁的物化性质及应用要求来选择载体与负载方法。而针对负载化酞菁新的应用要求,提出复合功能载体应是未来的发展方向。

Immobilization of phthalocyanines(Pcs)onto supports can efficiently improve their photostability,reduce their aggregation,as well as solve the recycle problems of them.However,there are too many kinds of supports and immobilization methods for Pcs'immobilization,and how to choose the suitable one is a problem.This review focuses on the structure and photo mechanisms of Pcs,as well as the supports and immobilization methods of immobilized Pcs.Moreover,the comparison of each support and methodologies for immobilization and the application of these supports and methodologies are also mentioned.Accordingly,it is pointed that the support and immobilization method should be chosen according to the physicochemical properties of Pcs and application requirements.Besides,it is suggested that the composite support is the future development direction.