纳米Eu∶CaWO_4的微结构、形态、光谱特征及光化学效应  

The Structure,Shape,Spectral Characteristics and Photochemical Reaction of Nano Eu∶CaWO_4

作　　者：曹林[1] 王聪[1] 羊富强[1] 车平[2] 王松君[3] 

机构地区：[1]北京科技大学材料物理系,北京100083 [2]北京科技大学应用科学学院,北京100083 [3]苏州科技学院化学与生物工程学院,江苏苏州215011

出　　处：《光谱学与光谱分析》2011年第11期3018-3021,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(40072013)资助

摘　　要：应用柠檬酸法和Pechini法[1],通过控制pH值对反应的前驱体进行处理,经高温烧结获得不同粒度和微结构的Eu∶CaWO4纳米材料。利用XRD,TEM,HRTEM及漫散射荧光光谱表征了晶体结构、微结构和光谱特征以及晶体形态变化。分解罗丹明实验发现所得纳米材料具有良好的光催化效应。The samples were pretreated by controlling PH in the process of Pechini,and after sintering and grind,the nano Eu-doped tungstate with different granularity was obtained in the result.The structure was characterized by XRD,and the diffuse scattering spectra and the crystal microstructure were characterized by HRTEM and spectrometer.It was found from high efficient decomposition of rhodamine that the nano-materials obtained have good catalytic effect of light.

关 键 词：纳米Eu∶CaWO4 光谱特征 光化学效应 

分 类 号：O433[机械工程—光学工程]