【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。更多还原

【Abstract】 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 NH₄F microemulsion.It was found that BaF₂ particle size and size distribution decrease with the mass ratio of CTAB to water increasing.更多还原