PDF全文下载：2011050459
耿延玲，冯萍，匡少平*
（青岛科技大学 化学与分子工程学院，山东 青岛 266042）
摘要: 采用共沉淀法成功制得掺Eu3+的钨酸钙粉体，通过X射线衍射分析（XRD）、傅里叶红外光谱仪（IR）、扫描电镜（SEM）、荧光光谱仪（PL）对样品进行了表征，研究了Eu3+的掺杂浓度对材料发光性质和表面形貌的影响。结果表明：由于Eu3+离子半径与Ca2+大小相当，所以掺杂低浓度Eu3+的CaWO4晶体未引起晶体结构的较大变化，其形状规则，分散良好，呈球形。Eu3+的掺杂浓度为5%（摩尔分数）时发光强度最强。
关键词: 共沉淀法；Eu3+；钨酸钙；发光
中图分类号:O 611.4文献标志码： A
Preparation and Properties of Eu3+-Doped Calcium Tungstate
GENG Yan-ling,FENG Ping,KUANG Shao-ping
(College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: Eu3+-doped calcium tungstate powders were prepared by a precipitation method and their properties were characterized by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (SEM), and fluorescence spectrometer (PL). The products are spherical in shape and disperse well. The Eu3+ in co-precipitation material has good luminescence properties and the best performance is obtained with the Eu3+ mole content of 5%.
Key words: the co-precipitation method; Eu3+; CaWO4; luminescence
收稿日期:2011-04-02
基金项目: 山东省自然科学基金项目(2009CRBO19WB).
作者简介: 耿延玲（1975—）,女,讲师.*通信联系人.
