Preparation of Silver Nanocolloids Using Silver Alkylcarbamate Complex in Organic Medium with PVP Stabilizer

Bulletin of the Korean chemical society

Hyung Seok Park¹  Myoung Seon Gong¹  Heon Su Park¹ 

关键词: Silver nanocolloid;    Polyvinylpyrrolidone;    Silver alkylcarbamate;    Organic solvent;    Hydrazine;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

We present a method for chemically reducing silver alkylcarbamate complex with hydrazine to synthesize silver nanocolloids in an organic solvent using polyvinylpyrrolidone (PVP) as the stabilizer. To determine the optimal conditions for preparing stable silver colloids of controlled size and shape, the silver 2-ethylhexylcarbamate (Ag- EHCB) complex, PVP, hydrazine, and 2-propanol solvent concentrations in the reaction mixture were varied. The initial colloid has a mean particle diameter of 5-80 nm, and it exhibits an absorption band with various shapes in the UV region with a maximum near 420 nm. UV-vis spectroscopy, TEM, and X-ray diffraction techniques were used to investigate the formation and growth process of the metallic silver nanocolloids.

【 授权许可】

Unknown