摘要
The photocatalyst consisted of titanium dioxide loaded on natural zeolite was prepared by impregnation of tetrabutyl titanate acidic solution followed by calcination. The photocatalytic activity of the catalyst towards dichlorvos has been examined as function of TiO 2 amount, calcination temperature of precursor, pH of sample solution and added amount of H 2O 2. The results indicated that the catalyst prepared by calcination at 200 ℃ showed the highest activity and 89% of Dichlorvos in concentration of 1.0×10 -4 mol/L could be degraded over the catalyst under sunlight illumination for 6 hours.
The photocatalyst consisted of titanium dioxide loaded on natural zeolite was prepared by impregnation of tetrabutyl titanate acidic solution followed by calcination. The photocatalytic activity of the catalyst towards dichlorvos has been examined as function of TiO 2 amount, calcination temperature of precursor, pH of sample solution and added amount of H 2O 2. The results indicated that the catalyst prepared by calcination at 200 ℃ showed the highest activity and 89% of Dichlorvos in concentration of 1.0×10 -4 mol/L could be degraded over the catalyst under sunlight illumination for 6 hours.
出处
《应用化学》
CAS
CSCD
北大核心
2003年第12期1222-1224,共3页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金 ( 4 0 172 0 2 0 )资助项目
关键词
TIO2
沸石
光催化降解
农药敌敌畏
titanium dioxide,zeolite,photocatalytic degradation,dimethyl dichlorovinyl phosphate
