摘要
描述了掺杂体系Ag／ZnO用于甲基对硫磷水溶液光催化降解，发现有氧存在下、经UV照射对甲基对硫磷光降解是有效的．并讨论了影响光降解甲基对硫磷诸因素。初步探讨了光降解机理和动力学，认为起始降解物为C2H6P＋S和O2NC6H4O－，且是一级反应，半衰期为1．82min。
A doping system (Ag/ZnO ) for photocatalytic degradation of methylparathion (MP) aqueous solution is described. It is found that the system has the ability to degrade MP effectively by way of irradiation of UV rays.The various factors that influence the photocatalytic degradation of MP have been studied. A preliminary discussion of the photodegradation mechanism and kinetics is made. The MP initial degraded products are C2H6P+S and O2NC6H4O-. The order of MP decomposition reaction is one and its half-lived time (t1/2) is 1. 82 min.
出处
《环境污染与防治》
CAS
CSSCI
CSCD
北大核心
1998年第3期5-8,共4页
Environmental Pollution & Control
基金
浙江省自然科学基金!295018(1995)
