表面修饰MnS纳米微粒的结构表征

Study on the Structure of Surface-Modified MnS Nanoparticles

采用表面修饰的方法 ,以双十八烷基二硫代磷酸盐 (PyDDP)为表面修饰剂 ,制备了双十八烷氧基二硫代磷酸 (DDP)表面修饰的MnS纳米微粒。采用TEM ,DSC ,XRD和FTIR对表面修饰MnS纳米微粒进行结构分析。结果表明 :表面修饰MnS纳米微粒是由DDP表面修饰层和MnS纳米核心所构成 ,微粒尺寸在 5～ 10nm之间 ,无机MnS纳米晶核具有 γ MnS的晶型结构。DDP表面修饰MnS纳米微粒在氯仿、苯和甲苯等有机溶剂中都具有良好的分散性。

The structure of surface modified MnS nanoparticle by dialkyldithiophosphate(DDP) molecules was investigated by TEM,DSC,XRD and FTIR.The results show that the DDP capped MnS nanoparticle consists of a layer of DDP molecules and MnS nanoparticle core.The diameter of DDP capped MnS nanoparticle is 5～10 nm.The crystal structure of inorganic MnS nanoparticle core is γ MnS crystal.Meanwhile,MnS nanoparticles are dispersed well in the organic solvents such as trichloromethane,benzed and toluene.