Ag/Au复合纳米粒子的制备

贵金属, 2001, 22(1): 17-20. doi: 10.3969/j.issn.1004-0676.2001.01.004

Ag/Au复合纳米粒子的制备

冯忠伟 ^1, , 蒋治良 ^2, , 凌绍明 ^3, , 李芳 ^4,

1.广西河池民族高等职业学院,

2.广西师范大学新技术新材料研究所,

3.广西师范大学新技术新材料研究所,

4.广西师范大学新技术新材料研究所,

关键词：银/金复合纳米粒子 , 光化学法 , 共振散射光谱

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。研究了Ag/Au复合纳米粒子的紫外可见吸收光谱和共振散射光谱特性。

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.

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