表面改性FeS纳米微粒的结构表征

Study on Structure of Surface Modified FeS Nanoparticles

采用表面改性的方法,以双十八烷基二硫代磷酸盐(DDP)为表面改性剂,制备了双十八烷氧基二硫代磷酸盐(DDP)表面改性的FeS纳米微粒。采用TEM,DSC,XRD和FTIR对表面改性FeS纳米微粒进行结构分析。结果表明,表面改性FeS纳米微粒是由DDP表面改性层和FeS纳米核心所构成,微粒尺寸在4nm^6nm之间。DDP表面改性FeS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 FeS nanoparticle prepared by dialkyldithiophosphate (DDP) molecules as the modifier is investigated by TEM, DSC, XRD and FTIR. The results show that the DDP capped FeS nanoparticle consists of a layer of DDP molecules and FeS nanoparticle core. The diameter of DDP capped FeS nanoparticle is 4 nm^6 nm. Meanwhile, FeS nanoparticles are dispersed well in the organic solvents such as trichloromethane, benz and toluene.