磁性Fenton催化剂氧化降解有机污染物的研究进展

Research progress in magnetic Fenton catalyst and its application to the oxidative degradation of organic pollutants

磁性催化剂不仅催化活性高,还具有独特的磁响应性,在外加磁场作用下可以实现分离与回收。磁性催化剂可有效解决传统Fe^(2+)催化剂回收困难、易产生二次污染等问题。综述了近年来的相关研究,重点讨论磁性Fenton催化剂的分类和合成方式,并介绍了其在Fenton和类Fenton体系中的催化性能。分析表明,磁性催化剂来源广泛、可再生、合成操作相对简便易行。未来研究应致力于拓展催化剂的pH适用范围、提高催化剂稳定性、开发新型负载材料。

Magnetic catalyst presents high catalytic activity,as well as unique magnetic responsiveness.Therefore,it can be separated from the reaction system and recovered under the influence of external magnetic field action.Magne tic catalyst can effectively solve the problems,such as difficult recovery,easy secondary pollution,etc.,brought about by traditional Fe2+catalyst.In the paper,related researches in recent years are summarized,the classification and syn thesis modes of magnetic Fenton catalysts discussed emphatically,and the catalytic capabilities in Fenton and Fenton like system introduced.The analysis shows that magnetic catalysts have the advantages of extensive sources and rene wability,and their synthesis process is relatively simple and easy.Future researches should put focus on expanding the pH application scope of catalyst,improving the catalyst stability,and developing new type of loading materials.