热辅助CuO/ZSM-5活化过硫酸盐降解苯酚废水研究  

Research on degradation of phenol wastewater sued CuO/ZSM-5 activated persulfate assisted by thermo process

作　　者：张昊楠[1] 唐海[1] 沙俊鹏 颜酉斌[1] 徐建平[1] 

机构地区：[1]安徽工程大学生物与化学工程学院,芜湖241000

出　　处：《化工新型材料》2017年第3期186-189,共4页New Chemical Materials

基　　金：国家自然科学基金(51274001);安徽省自然科学基金(1608085ME118);高校优秀青年人才重点项目(gxyqZD2016120);大学生创新训练项目(2016103630064)

摘　　要：以ZSM-5分子筛通过浸渍负载法制备出CuO/ZSM-5复合型催化剂,用扫描电镜、红外光谱和X射线衍射对其形貌结构进行表征,通过序批实验比较CuO/ZSM-5活化过硫酸盐体系降解苯酚的性能,对降解动力学进行分析并探讨其降解机理。结果表明催化剂中铜主要以CuO的形式存在,CuO/ZSM-5/过硫酸盐体系对苯酚有良好的降解效果。反应数据用Langmuir-Hinshelwood模型拟合,符合反应原理,表面反应是关键的控速步骤。与常规条件下催化降解苯酚的反应相比,该体系可较明显降低反应活化能。The composite catalyst CuO/ZSM-5was prepared by impregnation method with ZSM-5molecular sieve,its morphology and composition were characterized with scanning electron microscope（SEM）,fourier transform infrared spectroscopy（FT-IR）and X-ray diffraction（XRD）.The treatment effects of CuO/ZSM-5activated persulfate（PS）system on the degradation of phenol were compared with batch experiments,and kinetic analysis and degradation mechanisms were discussed.The results showed that the copper of catalyst was mainly in the form of CuO.CuO/ZSM-5/PS catalytic oxidation system had good effect on phenol degradation.The catalysis process can be described with the Langmuir-Hinshelwood model,which fitted well the principle of reaction,surface reaction rate controlling step was critical.It can be significantly lower activation energy than the catalysis degradation of phenol under conventional conditions.

关 键 词：CuO/ZSM-5 硫酸根自由基 苯酚 高级氧化技术 非均相活化 

分 类 号：X703[环境科学与工程—环境工程]