分子筛催化剂在染料降解中的应用研究进展

Application of molecular sieve supported catalysts in the degradation of dyes

综述了分子筛负载的钛化合物、铁化合物以及杂多酸在催化有机染料降解中的应用。常见的分子筛载体主要有二氧化硅分子筛、SBA-15、MCM-41和ZSM-5等。光催化剂负载于分子筛后,在催化不同染料降解时通常表现出十分优异的性能,一般均要高于同等条件下均相光催化剂的催化效率。另外,与均相催化剂相比,分子筛负载型光催化剂的回收再生性能更加优异。

The application of molecular sieve loaded titanium compounds,iron compounds and hetero-polyacids in the degradation of organic dyes was reviewed.The typical molecular sieve carriers were silica sieves,SBA-15,MCM-41 and ZSM-5.When the photo-catalysts were loaded on molecular sieves,excellent performance in the degradation of dyes could be observed.The supported catalysts showed higher catalytic activities than that of homogeneous photo-catalysts under the same conditions.In addition,compared with the homogeneous catalysts,the recovery and regeneration performance of the zeolite supported photo-catalysts were more excellent.