【摘要】 利用表面修饰方法在乙醇_水混合溶液中合成了双十八烷氧基二硫代磷酸盐修饰的AgCl纳米微粒 ,并用TEM、FT -IR、TG、XRD等仪器对其形貌、表面键合结构、热力学稳定性及晶体结构进行了表征 .结果表明 :双十八烷氧基二硫代磷酸盐与AgCl之间发生了化学键合作用 ,其亲油性大大改善 ,能在氯仿、四氢呋喃中均匀分散为澄清溶液 ,表面修饰层的存在有效地阻止了纳米粒子之间的团聚现象 ,因而粒径比较均匀 ,多数在 30nm左右更多还原

【Abstract】 AgCl nanoparticles, which were surface_modified with Pyridinium dioctadecyldithiophosphate(PyDDP),were prepared by chemical synthesis in water_ethanol mixing solution. FT_IR,TG,XRD and TEM were used to investigate the surface bonding structure, thermodynamic stability, crystal structure and morphology of the modified AgCl nanoparticles.It was found that the diameter of most DDP coated AgCl nanoparticles was about 30nm, and the dispersion capacity and oil_solubility have improved greatly.更多还原