CeO_2/ZnO复合纳米管的制备及其光催化性能的研究  

Study of the Preparation and Photocatalysis Performance of CeO_2/ZnO Mixed Nanometer Tubes

作　　者：李长全[1] 罗来涛[2] 熊光伟[2] 

机构地区：[1]南昌航空大学分析测试中心,南昌330063 [2]南昌大学应用化学研究所,南昌330031

出　　处：《化学学报》2010年第10期1023-1026,共4页Acta Chimica Sinica

基　　金：江西省教育厅科研基金(No.GJJ10286);高等学校博士学科点专项研究基金(No.20040403001)资助项目

摘　　要：用纳米CeO2掺入ZnO纳米管制备了CeO2/ZnO复合纳米管,考察了复合纳米管的光学及其光催化性能,并运用X射线衍射、透射电镜、比表面积测定和紫外-可见漫反射光谱等技术对样品进行了表征.结果表明,与ZnO纳米管相比,CeO2/ZnO复合纳米管的比表面积虽有所降低,但光催化活性有所提高,随着复合纳米CeO2量的增加,催化剂的光催化活性相应降低,太阳光下CeO2/ZnO复合纳米管对甲基橙溶液也有较高的催化活性.CeO2/ZnO mixed nano-tubes were prepared by doping nano-CeO2 into ZnO nano-tubes. The properties of optics and photo-catalysis of CeO2/ZnO mixed nano-tubes were studied,and the samples were characterized by means of X-ray diffraction,transmission electron microscopy,specific surface area deter-mination and ultraviolet-visual diffuse reflection spectroscopy. The result showed that the specific surface of CeO2/ZnO mixed nano-tubes decreased,but the degradation rate of CeO2/ZnO mixed nano-tubes for methyl orange was higher than that of ZnO nano-tubes. With the increase of content of CeO2 in CeO2/ZnO mixed nano-tubes,the degradation rate of methyl orange decreased accordingly. CeO2/ZnO mixed nano-tubes had certain degradation ability for methyl orange under sunlight.

关 键 词：CeO2/ZnO 复合纳米管 制备 光催化 

分 类 号：TB383.1[一般工业技术—材料科学与工程]