【摘要】 以 Ti O2 半导体为催化剂 ,研究了对二甲氨基苯甲醛废水的光催化降解。结果表明 ,CODCr3 0 0 mg·L- 1左右的对二甲氨基苯甲醛废水 ,经 3 0 0 W高压汞灯照射 3 .5h,COD的去除率为 98%。同时还考察了催化剂用量、光照时间、初始 p H值等多种因素对光降解的影响。结果表明 ,对二甲氨基苯甲醛的降解符合假一级动力学方程更多还原

【Abstract】 The photo-catalyticdegradation of P-Dimethylaminobenzal on TiO 2 semiconductor catalyst has been studied.The results showed that the degradation degree of P-Dimethylaminobenzal with original COD 300 mg·L -1 is 98% after lighting by 3.5 h radiation of 300 W high-pressure mercury lamp.The effects of other factors such as, catalyst dose,irradiation time,original PH on photo-catalyst degradation have been investigated.The results showed that equation of photo-catalytic degradation agreed with quasi one-order kinetic equation.更多还原