铈掺杂纳米氧化锌抗菌粉的研制及其结构性能分析  

Preparation,Structure Characterization and Properties of Antibacterial Agent of Cerium Doped Nano-ZnO

作　　者：薛涛[1] 曾舒[2] 毛键[3] 聂登攀[1] 潘鲁[2] 

机构地区：[1]贵州省冶金化工研究所,贵州贵阳550002 [2]贵州省纳米材料工程中心,贵州贵阳550002 [3]四川大学材料科学与工程学院,四川成都610064

出　　处：《中国稀土学报》2006年第z1期45-48,共4页Journal of the Chinese Society of Rare Earths

基　　金：贵州省优秀青年科技人才基金资助项目(20030319)

摘　　要：以纳米ZnO为载体,制备了复合无机抗菌剂Ce4+/ZnO。考察了不同氧化锌、Ce4+比例下的掺杂情况,利用Rietveld方法对掺杂样品的结构进行了精修,在自制实验装置上对其光催化性能进行了研究,并采用“营养肉汤法”对其抗菌性能作了检测。结果表明,ZnO对Ce4+的吸附率很高,可达100%,且几乎不受摩尔比的影响。X射线精修结果表明,有部分Ce4+进入了氧化锌晶格形成了固溶体。掺杂Ce4+明显提高了纳米ZnO的光催化性能和抗菌性能。With nano-ZnO as carrier,the Ce4+/ZnO compound inorganic antibacterial agent was prepared.The influences of different proportion of ZnO and Ce4+ on doping ratio were investigated.The structure of samples was investigated using the Rietveld powder diffraction profile method.The photocatalytic activities of nano-ZnO and Ce4+/ZnO were studied on the self-designed equipment.The anti-microbial properties of the Ce4+/ZnO powders were tested with the 'Nutrient Meat Soup' method.The results show that the adsorption rate of the nano-ZnO for Ce4+ is 100%,and the ratio of ZnO to Ce4+ has little effect.The Rietveld analysis revealed part of Ce4+ enters ZnO lattice and formed solid solution.Furthermore,the antimicrobial activity and photocatalytic activity of the nano-ZnO has been evidently improved through doping rare earth cerium.

关 键 词：纳米ZNO 铈掺杂 RIETVELD方法 光催化 抗菌 

分 类 号：TQ123.4[化学工程—无机化工] O614.3[理学—无机化学]