中文摘要：

以敌草隆作为研究对象,探讨了γ-辐照对敌草隆的降解效果,以及NO3^-,NO2^-,H2O2和CO3^2-对降解效果的影响,在初始浓度为18.5mg·l^-1时,1.0kGy的辐照剂量即可达到完全去除;随着辐照剂量的增加,敌草隆水溶液在200nm-400nm处的吸光度均逐渐减小,敌草隆的浓度也逐渐减小.NO3^-,NO2^-,H2O2和CO3^2-的加入均抑制了敌草隆的降解.辐照降解敌草隆的过程主要是由.OH自由基引起的,并且可以用一级动力学来描述.

英文摘要：

The kinetics and mechanism of Diuron that γ-irradiation was efficient in degradati degradation by γ-irradiation were investigated. The results showed on of Diuron. At the initial concentration of 18.5mg·l^-1, all Diuron was removed when 1.0kGy was selected as the radiation dose. Diuron concentration and the UV absorbances at 200-400nm decreased with the increase of radiation dose. NO3^-, NO2^-, H2O2and CO3^2- inhibited the degradation process. The process was mainly caused by the reaction of Diuron with ·OH and the reaction could be depicted by first order reaction kinetics.