作　　者： ; ; ; ; ; ; ;

机构地区： 南京大学环境学院污染控制与资源化研究国家重点实验室

出　　处： 《环境化学》 2011年第12期2022-2025,共4页

摘　　要： 利用60Co产生的γ-射线辐照水溶液中萘普生,研究了萘普生的降解特性.通过测定辐射后萘普生的浓度,探讨了吸收剂量、溶液pH、不同添加物(H2O2,CO23-,t-BuOH)对萘普生降解效果的影响.结果表明,γ-射线辐照能有效催化降解水溶液中的萘普生,降解过程符合准一级动力学方程.萘普生浓度为23.6 mg.L-1,吸收剂量为1.0 kGy时,萘普生去除率可达98%;0.5%H2 O2促进了辐照对萘普生的催化降解,而1.5%H2O2抑制了萘普生的降解;CO32-和t-BuOH抑制了辐照对萘普生的催化降解. Catalytic degradation of naproxen in aqueous solution by ~~Co gamma-ray irradiation was studied. lhe influence of absorption dose, solution pH, the presence of additives （H202, CO^- and t-BuOH） on the degradation of naproxen were investigated. The results showed that gamma-ray irradiation was able to degrade naproxen in aqueous solutions successfully, and the radiolytic degradation of naproxen was in accordance with the pseudo-first-order kinetic model. When naproxen concentration of 23.6 mg＂ L-1 and an absorption dose of 1.0 kGy were chosen, naproxen degradation rate was 98%. The presence of 0.5% H^O2 enhanced the degradation process,however, 1.5% H202 additive inhibited the degradation of naproxen. Additives such as CO^- and t-BuOH also inhibited the degradation process.

关 键 词： 萘普生 射线 辐照 催化降解

领　　域： [环境科学与工程]