粘土负载铁异相光催化降解有机染料罗丹明B  

Immobilized Fe^(3+)@Clay:an Efficient Heterogeneous Photo-Fenton Catalyst for Degradation of Rhodamine B

作　　者：彭一茱[1] 邹彩琼[1] 贾漫珂[1] 方艳芬[1] 王俊杰[1] 黄应平[1] 赵小蓉[1,2] 

机构地区：[1]三峡大学三峡地区地质灾害与生态环境湖北省协同创新中心,湖北宜昌443002 [2]三峡大学水利与环境学院,湖北宜昌443002

出　　处：《三峡大学学报（自然科学版）》2013年第6期101-104,共4页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金(21307073;21207079)

摘　　要：通过将Fe3+负载到经过煅烧的粘土(Clay)上制备复合型材料Fe-Clay(简称FeC)用作光催化剂,在可见光(λ>420nm)照射下,利用FeC光催化降解染料罗丹明B(Rhodamine B,RhB),研究了光催化反应介质pH及H2O2加入量等因素对RhB降解特性的影响.结果表明,在可见光照射下,RhB/FeC/H2O2体系反应180min后RhB的脱色率达100%,催化剂循环使用4次,其催化活性基本不变,可重复使用.Fe3+ supported on calcined clay(FeC)was prepared as a heterogeneous photo-Fenton catalyst and used for degradating Rhodamine B(RhB).The effects of concentration of H2O2 and initial pH were investigated.The results show that RhB could be efficiently degraded by the RhB/FeC/H2O2 system under visible irradiation with 100% decolorization after 180min reaction.The catalyst acitivity of FeC did not exhibit any obvious loss after the RhB degradation experiments in successive four batches.

关 键 词：粘土 光催化 异相Fenton反应 

分 类 号：O643.3[理学—物理化学]