CaF_2纳米粉体的制备与CaF_2/Er^(3+)纳粉体的荧光性能  

Preparation of CaF_2 Nanometer Powders and Fluorescence Performance of CaF_2/Er^(3+) Nanometer Powders

作　　者：张延[1] 梅炳初[1] 汪思[1] 李威威[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《合成化学》2011年第2期225-228,共4页Chinese Journal of Synthetic Chemistry

基　　金：国家自然科学基金资助项目(51072144);武汉理工大学材料复合新技术国家重点实验室自主研究课题(2009-ZT-1)

摘　　要：分别采用四组分[m(CTAB)∶m(正丁醇)∶m(正庚烷)∶m(水)=11∶11∶19∶10]反相微乳液体系和直接沉淀法制备了CaF2纳米粉体(简称nano-CaF2a,nano-CaF2b),其形貌和荧光性能经UV,IR,SEM及激发光谱表征。结果表明,nano-CaF2a形貌规则、单分散性良好,且粒径大小分布均匀。nano-CaF2b粒度不均匀,团聚现象较严重。掺杂了Er3+的nano-CaF2b能发出720 nm左右的红色荧光。The CaF2 nanoparticles（nano-CaFa2,nano-CaFb2） were prepared by four-component[m（CTAB） ∶ m（n-butyl alcohol） ∶ m（n-heptane） ∶ m（H2O）=11 ∶ 11 ∶ 19 ∶ 10] reverse microemulsion solutions and direct precipitation methods,respectivily.The topography and fluorescence performance of nano-CaF2 were characterized by UV,IR,SEM and excitation spectrum.The results showed that nano-CaFa2 exhibited uniform in diameter and regular in morphological forms,did not make any agglomeration,and monodisperse property.The nano-CaFb2 was not homogenous and severely agglomerated.Er3＋ doping nano-CaFb2 were emitted 720 nm red fluorescence.

关 键 词：微乳液 直接沉淀 氟化钙 纳米粉体 制备 荧光性能 

分 类 号：O613.41[理学—无机化学]