Ce-Cu复合催化剂用于对硝基苯酚废水处理研究  

REMOVAL OF p-NITROPHENOL FROM AQUEOUS SOLUTIONS BY CATALYTIC OXIDATION OVER Cu-Ce CATALYST

作　　者：周桂林[1] 魏梦颖[1] 费丽莎[1] 吴茂[1] 曹媛媛[1] 周新星[1] 谢红梅[1] 

机构地区：[1]重庆工商大学环境与生物工程学院,重庆市催化理论与应用技术重点实验室,重庆400067

出　　处：《水处理技术》2012年第2期52-55,共4页Technology of Water Treatment

基　　金：重庆工商大学科技创新基金项目(113012);重庆市教委科学技术研究项目资助(KJ100729);重庆高校创新团队建设计划(KJTD2010200)

摘　　要：通过络合法制得Ce-Cu复合催化剂,采用X射线衍射、扫描电子显微镜和程序升温还原对催化剂性能进行了研究,考察了该催化剂用于废水中对硝基苯酚去除性能。结果表明,催化剂中Cu氧化物能很好地溶入CeO2晶格形成表面具有多孔结构的Ce0.86Cu0.14O2固溶体催化剂,催化剂中Cu-O键得到一定程度的削弱,使其可还原性能得到提高而提高了催化剂中氧化物的活性。Ce0.86Cu0.14O2催化剂可将废水中对硝基苯酚的质量浓度由150 mg.L-1降到1.8 mg.L-1左右,对硝基苯酚去除率可达98.8%。The Cu-Ce catalyst was prepared by complex method.The prepared catalyst was characterized by XRD,SEM and TPR.The waste water,which contained p-nitrophenol,was used to research the catalytic performance.The results indicated that copper oxide can be solved into CeO2 crystal lattice to form Ce0.86Cu0.14O2 solid solution catalyst.The SEM analysis showed that the Ce0.86Cu0.14O2 catalyst surface had porous structures.Cu-O bond was weaken in the Ce0.86Cu0.14O2,which leads to the corresponding copper oxide reduced easily.So,the activity of oxides can be improved.The catalytic activity result showed that Ce0.86Cu0.14O2 catalyst had high catalytic activity for contain p-nitrophenol waste water,and the concentration of p-nitrophenol can be decreased to 1.8 mg·L-1 from 150 mg·L-1.The p-nitrophenol removal can reach 98.8%.

关 键 词：固溶体 Cu-Ce催化剂 对硝基苯酚 污水 催化氧化 

分 类 号：X703.1[环境科学与工程—环境工程]