Preparation,characterization and catalytic oxidation property of CeO_2/Cu^(2+)-attapulgite (ATP) nanocomposites

查看全文 作　　者：[1]游静;[2]陈丰;[2]赵晓兵;[2]陈志刚

机构地区：[1]School of Information Science and Engineering,Changzhou University;[2]School of Materials Science and Engineering,Changzhou University

出　　处：《Journal of Rare Earths》索引2010年第28卷第S1期,共6页

基　　金：Project supported by the National Science Foundation of China (NSFC20771047);Jiangsu Province Key Technology R&D Program (BE2008033);Provincial Science Foundation of Jiangsu (BK2008541) 摘　　要：Cerium oxide(CeO2) coated on copper modified attapulgite clay nanocomoposite(CeO2/Cu2+-ATP) was prepared by homogeneous deposition method.The microstructures of the as-prepared CeO2/Cu2+-ATP nanocomposites were characterized by X-ray diffraction(XRD),energy-dispersive spectrometer(EDS) and transmission electron microscopy(TEM).The results indicated that CeO2 particles with average size of about 5 nm were loaded onto the Cu2+-ATP and were widely dispersed.Comparing the catalytic activity of ATP/CeO2 and CeO2/Cu2+-ATP,the catalytic activity was improved when a small quantity of Cu2+ was introduced.The loading amount of CeO2 and reaction temperature had important effects on decolorization ratio of methyl orange(MO).When the loading amount and reaction temperature were 70% and 338 K,respectively,the decolorization ratio of MO reached over 99%,which showed excellent catalytic activity. 关键词：ATTAPULGITE CERIUM dioxide METHYL ORANGE CATALYTIC activity rare earths

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Preparation,characterization and catalytic oxidation property of CeO_2/Cu^(2+)-attapulgite (ATP) nanocomposites

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