紫外光-含Mn^(2+)类Fenton试剂降解活性艳红X-3B  

Degradation of Reactive Brilliant Red X-3B by Ultraviolet Light-Mn^(2+)-Containing Fenton Agent

作　　者：李琴[1] 夏东升[1] 曾庆福[1] 

机构地区：[1]武汉科技学院纺织印染清洁生产教育部工程研究中心,湖北武汉430073

出　　处：《化工环保》2010年第1期24-27,共4页Environmental Protection of Chemical Industry

摘　　要：采用紫外光(UV)-含Mn2+类Fenton试剂降解活性艳红X-3B,比较了UV-H2O2、Mn2+-H2O2和UV-Mn2+-H2O2三种体系下活性艳红X-3B的降解效果,考察了UV-Mn2+-H2O2体系中NO3-和Cl-浓度对活性艳红X-3B降解率的影响。实验结果表明:UV-Mn2+-H2O2体系中存在UV-H2O2和Mn2+-H2O2的协同作用;反应60min后活性艳红X-3B的降解率达99.30%,TOC去除率为56.45%,剩余H2O2浓度为6.28mmol/L;NO3-在紫外区的强吸收阻碍了H2O2的分解,而Cl-则是通过直接俘获溶液中的.OH来实现抑制作用。Reactive brilliant red X-3B was degraded by ultraviolet light (UV)-Mn2+-containing Fenton agent. The degradation effects under three kinds of systems,such as UV-H2O2,Mn2+-H2O2,UV-Mn2+-H2O2,were compared with each other. The effects of NO-3 and Cl-concentrations on the degradation rate of reactive brilliant red X-3B in the UV-Mn2+-H2O2 system were studied. The experimental results show that:there is a synergistic reaction between UV-H2O2 and Mn2+-H2O2 in the UV-Mn2+-H2O2 system; After 60 min of reaction,the ...

关 键 词：紫外光 锰离子 过氧化氢 FENTON试剂 协同催化 降解 活性艳红X-3B 

分 类 号：X703[环境科学与工程—环境工程]