摘要
为强化多相类芬顿反应的速率,采用可见光辅助树脂载铁(FeIII/R)为催化剂催化过氧化氢降解水中孔雀石绿(MG).结果表明,可见光能强化MG的降解.探讨初始pH值、过氧化氢初始浓度和MG初始浓度及叔丁醇等对反应速率的影响.叔丁醇实验表明羟基自由基和高价态铁在反应中同时存在.催化剂重复使用表明铁在树脂表面负载比较牢固,具有较好的稳定性.
In order to increase the reaction rate of the heterogeneous Fenton-like,the catalyst FeIII /R was used to catalytically decompose H2O2 under visible light for the removal of Malachite Green (MG) in aqueous solution.The effect of initial pH,initial H2O2 concentration,initial MG concentration and t-butanol on the reaction rate was also discussed.The result shows that the visible light can enhance the degradation of MG.The experiment of t-butanol shows that the ferryl iron and hydroxyl radical coexist in the system.Repeated use of catalyst does not decrease the removal rate of MG.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2010年第4期573-575,596,共4页
Journal of Harbin Institute of Technology
基金
国家高技术研究发展计划(863)项目(2006AA06Z306)
关键词
多相类芬顿
孔雀石绿
羟基自由基
高价铁
离子交换树脂
heterogeneous Fenton-like
Malachite Green
hydroxyl radical
ferryl iron
ion exchange resin