CTAB/丁醇/庚烷/水四组分微乳液稳定性研究及BaF_2纳米粉体制备  

Stability and Synthesis of Barium Fluoride Nanoparticles from CTAB/Butanol/Heptane/Water Microemulsion System

作　　者：吕燕飞[1] 吴希俊[1] 吴大雄[1] 王晖[1] 

机构地区：[1]浙江大学材料与化工学院和纳米科学与技术中心,浙江杭州310027

出　　处：《材料科学与工程学报》2006年第2期196-199,共4页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(59872031)

摘　　要：本文用CTAB/丁醇/庚烷/水四组分微乳液体系沉淀制备纳米BaF2。研究了体系中丁醇和CTAB的质量比、庚烷质量、含水量及溶质对微乳液体系稳定性和产物BaF2沉淀粒径、分布的影响。稳定的Ba(NO3)2微乳液和NH4F微乳液混合制得10nm的BaF2颗粒,单分散性好,颗粒呈球形。BaF2粒径大小和分布随CTAB和水质量比值的增大而减小。The Cetyltrimethylammonium bromide（CTAB）/butanol/heptane/water microemulsion system was used to synthesize BaF2 nanoparticles. The influences of the mass ratio of butanol to CTAB, the content of heptane and water, and the species of solute in water phase on the stability of microemulsion system and resultant BaF2 particle size and size distribution were investigated. 10nm BaF2 particles well monodispersed and ball-shaped were synthesized by reaction of stable Ba（ NO3 ）2 microemulsion and NH4 F microemulsion. It was found that BaF2 particle size and size distribution decrease with the mass ratio of CTAB to water increasing.

关 键 词：稳定微乳液 纳米BaF2 

分 类 号：TQ110.3[化学工程—无机化工]