摘要
用高压汞灯为光源 ,以二氧化钛 (锐钛型 )光催化降解有机溴杀虫剂—溴氰菊酯 (俗名敌杀死 ) ,研究了 Ti O2 用量、p H值、温度、光照强度、 H2 O2 等对降解的影响及采用太阳光做光源处理溴氰菊酯的可行性。结果表明 ,在 Ti O2 用量为 30 mg/2 5m L、 p H=4、 5 m L 3 % H2 O2 、室温条件下 ,光照 3 h敌杀死分别降解了 73.5 % (高压汞灯 )和 66.0 % (太阳光 )左右。说明以高压汞灯及太阳光作光源 ,Ti O2
TiO 2(anatase) was applied to photocatalytically degrade deltamethin insecticide (Decis) with high pressure mercury lamp as light source.The effects of some factors,such as dosage of TiO 2,pH values,temperature,illuminating intensity,H 2O 2,and the feasibility of solar illumination as light source were studied.The results showed that under the following conditions:dosage of TiO 2 30 mg/L,pH=4,5 mL 3 % H 2O 2,room temperature,Decis degradation ratios were 73 5 % (high pressure mercury lamp) and 66 0 % (solar light) after three hours illumination.It had been proven that Decis could be photocatalytically degraded by TiO 2 with high pressure mercury lamp and solar light.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2000年第1期13-14,27,共3页
Environmental Pollution & Control
