磁性CuO非均相光催化H_(2)O_(2)去除水中SMX的机理研究  

Study on the Mechanism of Heterogeneous Photocatalytic Degradation of Sulfamethoxazole in Water by H_(2)O_(2) With Magnetic CuO Nanoparticles

作　　者：彭伟 张楷 罗祖杨 林源野 刘耀群 PENG Wei;ZHANG Kai;LUO Zu-yang;LIN Yuan-ye;LIU Yao-qun(Department of Military Facilities,Army Logistics Academy,Chongqing 401331,China;Engineering Quality Supervision Station of Naval Logistics Department,Beijing 100036,China)

机构地区：[1]陆军勤务学院军事设施系,重庆401331 [2]海军后勤部工程质量监督站,北京100036

出　　处：《当代化工》2023年第7期1554-1558,共5页Contemporary Chemical Industry

基　　金：重庆市教委科学技术研究项目(项目编号:KJQN202212901);陆军勤务学院“双重”建设项目。

摘　　要：磺胺类抗生素是一种新污染物,水环境中的残留可能会对人体造成负面影响,因此研发磺胺类抗生素的深度处理技术是确保水质安全的重要途径。采用水热法合成一种磁性CuO光催化复合材料,用于在模拟太阳光照射的条件下,非均相催化H_(2)O_(2)去除水中磺胺甲噁唑。结果表明:CuO-Fe_(3)O_(4)复合材料具有良好的光催化活性和活化H_(2)O_(2)的能力,CuO和Fe_(3)O_(4)之间存在良好的协同作用,提高了SMX的降解率。自由基淬灭和ESR实验结果表明,反应中的活性基团为e^(-)、h^(+)、·O_(2)%(-)、·OH和^(1)O_(2)。Sulfa antibiotics are a new pollutant,and their residues in the water environment may have a negative impact on the human body.Therefore,the development of advanced treatment technology of sulfa antibiotics is an important way to ensure the safety of water quality.A magnetic CuO photocatalytic composite was synthesized by hydrothermal method,which was used for heterogeneous catalytic H_(2)O_(2) removal of sulfamethoxazole from water under simulated sunlight irradiation.The results showed that CuO-Fe_(3)O_(4) composite had good photocatalytic activity and the ability to activate H_(2)O_(2).There was a good synergy between CuO and Fe_(3)O_(4),which improved the degradation rate of SMX.The results of radical quenching and ESR showed that the active groups in the reaction were e^(-),H^(+),·O_(2)^(-),·OH and ^(1)O_(2).

关 键 词：磁性CuO 非均相光催化 反应机理 

分 类 号：X131.2[环境科学与工程—环境科学]