摘要
概括了纳米铁酸盐(以ZnFe2O4和BiFeO3为代表)光催化剂的制备方法;综述了其在废水处理中的应用现状;讨论了催化反应中铁酸盐的特性及工艺条件(初始反应p H、初始污染物浓度、H2O2的加入等)对有机污染物降解率的影响;介绍了光助-类Fenton氧化反应的机理;对纳米铁酸盐在废水处理应用中存在的问题进行了总结,并对今后的研究方向进行了展望。
In this paper, the preparation method for photocatalyst nano ferrite （represented by ZnFe2O4 and BiFeO3） and its application in wastewater treatment are reviewed. The catalytic characteristics of ferrite are studied and the effects of process conditions on the degradation rate of organic pollutants are discussed, such as initial reaction pH, initial pollutants concentration, H2O2 addition, and so on. The reaction mechanism of photo Fenton-like oxidation is introduced. Finally, the problems in application of nano ferrite in wastewater treatment are summarized and the development directions are proposed.
出处
《化工环保》
CAS
CSCD
北大核心
2015年第1期27-33,共7页
Environmental Protection of Chemical Industry
基金
国家水体污染与治理科技重大专项(2012ZX07211-003)
关键词
纳米铁酸盐
光催化剂
铁酸锌
铁酸铋
芬顿氧化
废水处理
nano ferrite
photocatalyst
zinc ferrite
bismuth ferrite
Fenton oxidation
wastewater treatment
