【摘要】 以PVP为表面活性剂,甲酸铵为还原剂,采用液相还原法制备了纳米银颗粒。采用X射线衍射(XRD)、透射电子显微镜(TEM)和紫外-可见光吸收光谱(UV-Vis)对所制备样品进行表征。结果显示:当PVP与Ag NO3的质量比为2.2:1,陈化时间24 h,得到立方块和六棱柱的银混合颗粒。更多还原

【Abstract】 Nano-silver particles were prepared by using polyvinyl pyrolidone as the dispersing agent and ammonium as the reducing agent. The resulting specimens were characterized by X-ray diffraction(XRD), transmission electron microscopy(TEM) and UV-Vis adsorption spectrum. The result revealed that a mixture of cube and hexagonal prisms of nano-silver particles was obtained when the mass ratio of PVP to Ag NO3 was 2.2:1 and the aging time was 24 hours.更多还原