广西师范大学学报（自然科学版） ›› 2013, Vol. 31 ›› Issue (4): 84-87.

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硅钼比对核壳结构SiO2/CaMoO4:Eu3+,Li+红色荧光粉的影响

王晓凤1,2, 王夏1,2, 彭桂花1,2, 梁振华1,2, 吴京隆1,2   

  1. 1.广西师范大学化学与药学学院,广西桂林541004;
    2.广西师范大学药用资源化学与药物分子工程教育部重点实验室,广西桂林541004
  • 收稿日期:2013-07-13 出版日期:2013-12-20 发布日期:2018-11-26
  • 通讯作者: 彭桂花(1979—),女,湖北钟祥人,广西师范大学教授,博士。E-mail:pengguihua164@163.com
  • 基金资助:
    国家自然科学基金资助项目(50962003,51102053)

Effect of Si/Mo Radio on Core-shell Structured SiO2/CaMoO4:Eu3+, Li+ Red Phosphor Synthesized

WANG Xiao-feng1,2, WANG Xia1,2, PENG Gui-hua1,2, LIANG Zhen-hua1,2, WU Jing-long1,2   

  1. 1.College of Chemistry and Pharmaceutical Science,Guangxi Normal University,Guilin Guangxi 541004,China;
    2.Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources,Ministry of Education of China,Guangxi Normal University,Guilin Guangxi 541004,China
  • Received:2013-07-13 Online:2013-12-20 Published:2018-11-26

摘要： 采用均相沉淀和燃烧合成相结合的方法合成核壳结构SiO2/CaMoO4:Eu3+,Li+荧光粉。利用X射线衍射仪、扫描电子显微镜、透射电子显微镜和荧光光谱研究不同硅钼比对荧光粉的物相结构、形貌和发光强度的影响,结果表明:当硅钼比为20:1时,CaMoO4:Eu3+,Li+荧光粉微粒在球形SiO2表面结晶良好,所形成的核壳结构微球粒径均匀,在近紫外光(395 nm)激发下,617 nm附近有较强的红光发射峰。

关键词: 硅钼比, 核壳结构, 二氧化硅微球, 钼酸钙荧光粉

Abstract: The spherical core-shell structured SiO2/CaMoO4:Eu3+,Li+ phosphors were prepared by a combined approach of homogeneous precipitation and combustion synthesis.The effects of different Si/Mo radio on the crystal structure,morphology and luminescence properties of the SiO2/CaMoO4:Eu3+,Li+ phosphors were systematically investigated by powder X-ray diffraction,scanning electron microscopy,transmission electron microscopy and photoluminescence,respectively.The results show Si/Mo radio is 20:1,the CaMoO4:Eu3+,Li+ particles are well-crystallized on the SiO2 spheres,and the obtained microspheres with the uniform size distribution have a core-shell structure,the SiO2/CaMoO4:Eu3+,Li+ microspheres exhibited an intensive red emission of 617 nm under near ultraviolet (395 nm) excitation.

Key words: Si/Mo radio, core-shell structure, silica microsphere, calcium molybdate phosphors

中图分类号: 

  • O611.4
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