活性炭改性TiO_2对甲胺膦农药的光催化降解的研究  

Study on photocatalytic degradation of methamidophos using TiO_2/A.C catalyst

作　　者：詹雪艳[1] 宋丹丹[1] 王莉娟[1] 赵艳霞[1] 

机构地区：[1]华中师范大学化学学院,武汉430079

出　　处：《华中师范大学学报（自然科学版）》2003年第4期522-525,共4页Journal of Central China Normal University：Natural Sciences

基　　金：国家自然科学基金(青年基金)资助项目(20207002).

摘　　要：主要探讨了活性炭掺杂改性TiO2/A.C的制备及其降解有机磷农药的效率,以及影响降解效率的因素.实验结果表明,制备的TiO2/A.C催化剂对低浓度的甲胺膦农药(40.71mg/L)的光催化降解过程是符合一级反应动力学方程的.催化剂中A.C的含量,催化剂的灼烧温度,催化剂的使用量对反应的降解效率均有显著的影响.To enhance the catalytic activity of TiO_2 ,TiO_2/A.C prepared by the method of sol-gel. It was used to degradate methamidophos (initial concentration is 40.71 mg/L) in aqueous solution, which showed that the photocatalyst had high catalytic activity and the procedure of photocatalytic degradation fitted a first-order kinetic relationship well. In addition, different conditions, such as the A.C content,calcination temperature, the quantity of TiO_2/A.C had significant effects on the degradated efficiency.

关 键 词：光催化降解 TIO2 活性炭 甲胺膦 

分 类 号：O643.36[理学—物理化学]