H_2O_2处理H_3PW_(12)O_(40)/ZrO_2-WO_3光催化降解有机染料  

Photocatalytic Degradation of Organic Dye with H_3PW_(12)O_(40)/ZrO_2-WO_3 Sensitized by H_2O_2

作　　者：钟立群[1] 刘艳举[1] 徐玉林[1] 彭放[1] 杨水金[1] 

机构地区：[1]湖北师范学院化学化工学院污染物分析与资源化技术湖北省重点实验室,湖北黄石435002

出　　处：《精细化工》2013年第12期1413-1418,共6页Fine Chemicals

基　　金：湖北省自然科学基金资助项目(2005ABA053)~~

摘　　要：采用浸渍法将H3PW12O40负载在ZrO2-WO3上,通过H2O2溶液的敏化,制得H3PW12O40/ZrO2-WO3(x)光催化剂。然后以光降解甲基橙为探针反应,对各反应影响因素进行了探究。在甲基橙初始质量浓度为5 mg/L,溶液pH=2.5,催化剂用量为0.3 g的优化条件下,光降解2 h,甲基橙的降解率达到91.2%,光催化降解甲基橙溶液为一级动力学反应。且H3PW12O40/ZrO2-WO3(x)对罗丹明B、碱性品红和和亚甲基蓝也具有较高的光催化活性,降解率分别为70.0%、73.0%和73.5%。H3PW12O40/ZrO2-W03 was prepared by ZrO2-WO3 and the intermediate was further sensi impregnation, in which H3PW12O40 was loaded onto tized by H2O2 solution. Its catalytic activity under simulated natural light was improved significantly. Photodegraded methyl orange was used as a probe to explore the influencing factors of the photodegradation reaction. The optimum conditions are that initial mass concentration of methyl orange is 5 mg/L, pH is 2.5, catalyst dosage is 0. 3 g, and the degradation ratio of methyl orange is as high as 91.2% after 2 photocatalysis for methyl orange can be expressed as h under simulated natural light. The reaction of first-order kinetic model. The photodegradation of rhodamine B, basic fuchsin and methylene blue was also investigated, and the degradation rate of dyes can reach 70.0% ,73.0% and 73.5% ,respectively.

关 键 词：多金属氧酸盐 载体 ZrO2-WO3 光催化降解 有机污染物 

分 类 号：TQ426.91[化学工程] X791[环境科学与工程—环境工程]