Ag/Au复合纳米粒子的制备

The Preparation of Ag/Au Compound Nanoparticles

以柠檬酸化学还原法制备的金纳米粒子作晶种 ,在光照的条件下Ag+被柠檬酸钠还原成金属银 ,而均匀地覆盖在金粒子表面 ,制成具有良好的分散性和较为规则的球形的银 /金复合纳米粒子。

Gold nanoparticles made by chemical reduction with citric acid were used as the seed.On irradiation,Ag + ions on the gold nanoparticles were reduced to the metal form by sodium citrate.And the metal silver was well distributed on the surface of the gold particles. Thus Ag/Au compound nanoparticles were prepared and had excellent decentralization with more regular spherical shape.Researches on the characters of UV and resonance scattering spectroscopy of Ag/Au compound nanoparticles were also carried out.