徐州工程学院学报（自然科学版）2016，Vol.31Issue(1)：19-26,8.
H3PW6M o6O40／TiO2-SiO2光催化降解有机污染物的研究
Photocatalytic Degradation of Organic Dyes with H3 PW6 Mo6 O40/TiO2-SiO2
摘要
Abstract
In order to remove aquatic organic dye contaminants utilizing the inexpensive and inexhausti‐ble solar energy ,the Keggin‐type H3 PW6 Mo6 O40 was loaded by the specific surface area TiO2‐SiO2 with the impregnation method .The photocatalytic degradation of methyl orange by H3 PW6 Mo6 O40/TiO2‐SiO2 under simulated natural light irradiation was investigated .At the same time ,the influences of the initial methyl orange concentration ,the solution pH and the catalyst dosage on the photocatalytic degradation ratio of methyl orange were also examined .The results demonstratiod that initial concentration of methyl orange was 5 mg/L ,and the catalyst dosage was 0 .9 g/L ,while the pH was 3 .0 .The degradation ratio of the methyl orange could reach to 98 .0% after the light irradiation time of 3 .5 hours .The reaction of photoca‐talysis for methyl orange was the first‐order kinetic model .The photodegradation of methyl viole ,mala‐chitegreen oxalate ,methylene blue ,fuchsin basic and methyl red were also tested ,and the degradation ratio of dyes could achieve 93 .2% ~98 .0% .关键词
H3PW6Mo6O40/TiO2-SiO2/甲基橙/光催化/降解Key words
H3 PW6 Mo6 O40/methyl orange/TiO2-SiO2/photocatalytic/degradation分类
化学化工引用本文复制引用
杨水金,彭放,周国辉,陈慧媛..H3PW6M o6O40／TiO2-SiO2光催化降解有机污染物的研究[J].徐州工程学院学报（自然科学版）,2016,31(1):19-26,8.基金项目
2015年地方高校国家级大学生创新创业训练计划（201513256001）；湖北省自然科学基金重点资助 （）
