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负载型杂多酸的制备及其光催化性能研究
引用本文:刘春丽,滕昭玉,陈飞燕,廖莉玲. 负载型杂多酸的制备及其光催化性能研究[J]. 广州化工, 2014, 0(19): 37-39
作者姓名:刘春丽  滕昭玉  陈飞燕  廖莉玲
作者单位:贵州师范大学化学与材料科学学院,贵州 贵阳,550001
基金项目:贵州省科技厅与贵州师范大学联合基金(黔科合J字LKS [2010]14号)。
摘    要:采用溶胶-凝胶法制备了负载型杂多酸H3PW12O40/SiO2、H4SiW12O40/SiO2、H3PMo12O40/SiO2催化剂,利用X射线衍射(XRD)对其结构进行了表征;考察了负载型催化剂对甲基橙溶液的光催化降解,探究了催化剂的循环使用次数。结果表明,负载型杂多酸是一种非晶态复合物;H3PW12O40/SiO2对甲基橙溶液的降解有最高的活性,其经回收循环利用,第4次脱色率仍能达到60%左右。

关 键 词:负载型杂多酸  溶胶-凝胶法  光催化降解  甲基橙

Study on Preparation and Photocatalytic Properties of Supported Heteropoly Acid
LIU Chun-li,TENG Zhao-yu,CHEN Fei-yan,LIAO Li-ling. Study on Preparation and Photocatalytic Properties of Supported Heteropoly Acid[J]. GuangZhou Chemical Industry and Technology, 2014, 0(19): 37-39
Authors:LIU Chun-li  TENG Zhao-yu  CHEN Fei-yan  LIAO Li-ling
Affiliation:LIU Chun-li;TENG Zhao-yu;CHEN Fei-yan;LIAO Li-ling;School of Chemistry and Material Science,Guizhou Normal University;
Abstract:H3PW12 O40/SiO2, H4SiW12 O40/SiO2 and H3PMO12 O40/SiO2 photoeatalyst were prepared by sol - gel method and characterized by X - ray diffraction. The photocatalytic activities of the catalysts and recycling use number were investigated for photoeatalytic degradation of methyl orange. The results showed that supported heteropoly acids were non -crystalline substance, H3PW12O40/SiO2 had the best catalytic activity and its decoloration could attain 60% after it was used 4 times.
Keywords:supported heteropoly acid  sol-gel method  photocatalytic degradation  methyl orange
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