摘要
以沉积沉淀法制备了负载型CuO/Al_2O_3催化剂,利用N2吸附、扫描电镜和X射线衍射等技术进行了表征。在CuO/Al_2O_3催化剂与H_2O_2构建的多相类Fenton催化体系内对硝基苯的降解效能和机制进行了研究。结果表明,在最优条件下,硝基苯的去除率达到84.73%;反应过程中溶铜量很少,且多相类Fenton反应起主导作用;降解硝基苯过程中的主要中间产物有苯胺、苯酚、氨基类有机物等物质,最终产物为酯类有机物等小分子物质,提高了污水的可生化性。
The CuO/Al2O3 supported catalyst prepared by deposition-precipitation method has been characterized by N2 adsorption,scanning electron microscope and X-ray diffraction. The research on the efficiency and mechanisms of nitrobenzene degradation in a heterogeneous Fenton-like catalytic system consisting of CuO/Al2O3 catalyst and H2O2 has been implemented. The experimental results show that the nitrobenzene removing rate is 84.73% under optimal conditions. The amount of Cu^2＋ dissolution is comparatively low in the reaction process,and the heterogeneous Fenton-like reaction plays a leading role. The main intermediate products in the nitrobenzene degradation process are the substances,such as aniline,phenol,organic substances with amino-group and so on,and the final products are micro-molecular substances,which can improve the biodegradability of wastewater.
作者
刘强
丁一鸣
李锦卫
姜成春
Liu Qiang;Ding Yiming;Li Jinwei;Jiang Chengchun(College of Municipal and Environmental Engineering,Shenyang Jianzhu University, Shenyang 110168, China;Urban Water Benign Engineering Research and Development Center, Shenzhen Polytechnic, Shenzhen 518055, China)
出处
《工业水处理》
CAS
CSCD
北大核心
2018年第5期15-20,共6页
Industrial Water Treatment
基金
国家自然科学基金项目(51378316)
深圳市科技创新委员会项目(JCYJ20150630114140635)
