V_2O_5/TiO_2可见光催化降解孔雀石绿的研究  

Photocatalytic degradation of basic green over V_2O_5/TiO_2 catalyst under visible light

作　　者：吴文清[1] 吴瑛[1] 吴廷华[1] 

机构地区：[1]浙江师范大学物理化学研究所先进催化材料省部共建教育部重点实验室,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2010年第4期442-447,共6页Journal of Zhejiang Normal University:Natural Sciences

基　　金：浙江省教育厅科研项目(Y200909374)

摘　　要：利用组合化学的方法,以三苯基胺类有机污染物孔雀石绿为降解对象,对复合光催化剂MOx/TiO2(M=Zn,Ni,La,Mo,V,Si)的催化降解性能进行了筛选,表明V2O5/TiO2体系具有最优异的光催化降解性能.在此基础上,对V2O5/TiO2催化剂进行了优化.结果表明:当采用钛酸丁酯溶胶-凝胶法制备、n(V2O5)∶n(TiO2)为15%时,V2O5/TiO2催化剂有最佳的光降解效果,降解率可达96%.A combined chemical mechod with CCD imaging analysis system was used to choose high activity photocatalyst.By using the technologies,it was screened several TiO2 doped metallic oxide photocatalysts and found that V2O5/TiO2 was a good one for the degradation of basic green.The doping of V2O5 into TiO2 retarded the recombination of electron-hole pairs in catalysts and rendered the catalysts more active in visible light.The reaction results indicated that when the mole ratio of V2O5/TiO2 prepared by sol-gel method was 15%,the degradation rate of basic green reached 96% under visible light.

关 键 词：溶胶-凝胶法 V2O5/TIO2催化剂 可见光 孔雀石绿 光降解 

分 类 号：O643.13[理学—物理化学]