Poly(vinyl pyrolidone) coated silver nano powder via displacement reaction

The production of silver particles coated with poly (vinyl pyrolidone) (PVP) was described using copper turnings in aqueous medium. The IR spectrum of isolated powder shows a chemical bonding between PVP and silver. It was observed that in the absence of PVP, the particles are agglormerated and are bigger in size than in the presence of PVP. The electronic absorption measurements (UV-visible), infrared spectroscopy (IR) data and Scanning electron microscopy (SEM) shows that the chemical bonding between PVP and silver powder had an important role in preparing PVP-coated silver powder.