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采用聚乙烯吡咯烷酮、无水乙醇和去离子水混合溶液,利用水合肼还原硝酸银制备纳米银粒子。利用透射电子显微镜,紫外-可见吸收光谱和X射线衍射对纳米银粒子进行表征。结果表明,该法制备的纳米银粒子杂质含量低,粒度分布集中,颗粒均匀一致,形貌呈球形。
Polyvinylpyrrolidone, anhydrous ethanol and deionized water mixed solution, the use of hydrazine hydrate reduction of silver nitrate preparation of silver nanoparticles. The silver nanoparticles were characterized by transmission electron microscopy, ultraviolet-visible absorption spectroscopy and X-ray diffraction. The results show that the silver nanoparticles prepared by this method have low impurity content, concentrated particle size distribution, uniform particles and spherical appearance.