非水反相微乳中NaCl纳米粒子的制备

在乙醇/Brij 30/十六烷反相微乳中利用无水NaAc与HCl反应制备了水可溶性晶态NaCl纳米粒子,平均粒径为 60 nm.与在甲酰胺/AOT/正庚烷反相微乳中制备的粒径约为1 μm的NaCl粒子进行比较,表明在特定条件下,非水微乳可以作为合成水可溶性纳米粒子的有效介质.

Preparation of NaCl Nanoparticles in Nonaqueous Reverse Microemulsion

Water soluble NaCl nanoparticles were prepared by reacting NaAc with HCl in ethanol/Brij 30/hexadecane microemulsion.The particles obtained are crystalline spheres with an average particle size of about 60 nm.In the case of using formamide/AOT/n heptane microemulsion as the reaction medium,NaCl particles can only be obtained by adding precipitant after the reaction.The latter particles are crystalline cubes with a much larger particle size(1 μm).The results show that nonaqueous reverse microemulsion may provide a new medium for the preparation of water soluble nanoparticles and the choice of the polar solvent is critical to obtain nanosized materials.