安徽农业科学2011，Vol.39Issue(31)：19305-19306,19357,3.
POMs/TiO2复合催化剂光催化降解有机污染物的研究
Photocatalytic Degradation of Organic Pollutants by the Composite Catalyst of Polyoxometalates (POMs) and Titanium Dioxide
摘要
Abstract
[Objective] The aim is to investigate photocatalytic degradation of dye waste water ( Acid Mordant Black PV solution) under UV light irradiation using the composite of POMs/TiO2 as catalyst prepared by sel-gel method. The study can provide the theoretical guidance for degradation of organic pollutants. [ Method] The degradation of PV is affected by content of POMs in catalyst, amount of catalyst, pH, concentration of H2O2 solution . [ Result] The catalyst of H4SiW12O40/TiO2 has the best efficiency to the photocatalytic degradation of dye wastewater (PV solution). In 300 mg/L RUN solution, the optimum reaction condition is as follows. The amount of catalyst H4SiW12O40/TiO2 (α-H4SiW12O40 content: 1.5% ) is 60 mg, pH = 2.0, 20 mmol/L H2O2 solution. Under the above condition, the percentage of degradation for PV comes up to 72.48%. [ Conclusion] The photocatalytic activity of POMs/TiO2 catalyst is higher than that of TiO2. Photocatalytic degradation of organic pollutions by POMs/TiO2 catalyst has great significance.关键词
多金属氧酸盐/二氧化钛/光催化降解/有机污染物Key words
Polyoxometalates/ Titanium dioxide/ Photocatalytic degradation/ Organic pollutants分类
化学化工引用本文复制引用
马凤霞,姜辉,王丰..POMs/TiO2复合催化剂光催化降解有机污染物的研究[J].安徽农业科学,2011,39(31):19305-19306,19357,3.基金项目
吉林省教育厅资助项目(2009304). （2009304）
