基于尖晶石型铁氧体的高级氧化技术在有机废水处理中的应用  

Application of Spinel Ferrite⁃Based Advanced Oxidation Processes in Organic Wastewater Treatment

作　　者：葛明 胡征 贺全宝 Ming Ge;Zheng Hu;Quanbao He(College of Chemical Engineering,North China University of Science and Technology,Tangshan 063210,China)

机构地区：[1]华北理工大学化学工程学院,唐山063210

出　　处：《化学进展》2021年第9期1648-1664,共17页Progress in Chemistry

基　　金：河北省自然科学基金项目(No.B2019209373)资助。

摘　　要：随着我国经济的快速发展和城市化进程的加快,自然水体中的有机污染问题愈加严重。基于自由基反应的高级氧化技术(AOPs)可以高效去除水环境中残留的难生物降解的有机污染物,在催化剂的作用下,高级氧化过程方能有效生成强氧化性的自由基来降解有机污染物。尖晶石型铁氧体(MFe_(2)O_(4)(M=Zn,Ni,Co,Cu,Mn))被广泛用作高级氧化过程中驱动自由基生成的催化剂,同时强磁性及高稳定性保证其容易在外加磁场的作用下实现回收和再利用。本文主要综述了基于尖晶石型铁氧体的非均相类芬顿技术、光催化技术及过硫酸盐高级氧化技术在有机废水处理方面的研究进展,着重介绍了不同铁氧体磁性纳米材料在上述3种高级氧化技术中催化降解水体中有机污染物的作用机制以及催化性能增强的途径;最后指出尖晶石型铁氧体在高级氧化技术应用中存在的一些问题,并对其后续研究方向进行展望。With the rapid development of China’s economy and the acceleration of urbanization,the problem about organic pollutions in natural water bodies has become more and more serious.The advanced oxidation processes(AOPs)based on free radical reaction can efficiently degrade the non⁃biodegradable organic pollutants remaining in water environment.Under the action of the catalyst,the advanced oxidation processes can effectively generate the strong oxidizing free radicals to degrade organic pollutants.Spinel ferrite(MFe_(2)O_(4)(M=Zn,Ni,Co,Cu,Mn))is widely used as a catalyst to promote the generation of free radicals in the advanced oxidation processes,and at the same time,its strong magnetism and high stability ensure that it is easy to recycle by an external magnetic field and further reused.This article mainly reviews the research progress of spinel ferrite⁃based heterogeneous Fenton⁃like technology,photocatalytic technology and persulfate advanced oxidation technology in organic wastewater treatment,and focuses on the catalytic degradation mechanism of organic pollutants in water bodies by the different ferrite magnetic nanomaterials in the above three advanced oxidation technologies,and the ways to enhance catalytic performances of ferrite magnetic catalysts.Finally,we point out some problems about the application of spinel ferrite in advanced oxidation processes,and the future research directions of spinel ferrite⁃based advanced oxidation processes are also prospected.

关 键 词：铁氧体 类芬顿氧化 光催化 过硫酸盐 有机废水 催化机理 

分 类 号：O649[理学—物理化学] O643[理学—化学]