摘要
采用单宁酸—柠檬酸钠还原氯金酸法合成了纳米金,采用紫外-可见分光光度计和透射电子显微镜对纳米金的紫外吸收特性、粒径及形貌进行了表征.结果表明：加入柠檬酸钠溶液4 mL和单宁酸溶液0.1 mL时制得的纳米金紫外吸收特性最佳;在此条件下制得的纳米金形貌均一、分散性好、稳定性佳且平均粒径为15~20nm.
Gold nanoparticle was prepared by tannic acid-sodium citrate with reducing the gold acid chloride.The ultraviolet absorption properties,particle size and morphology were characterization by ultraviolet visible spectrophotometer and transmission electron microscopy.The results showed that the optimal properties of gold nanoparticle with uniform morphology,even dispersion and stability are gained with 4 mL sodium citrate solution and 0.1 mL tannic acid solution.The average particle size of gold nanoparticle is about 15~20nm.
出处
《云南师范大学学报（自然科学版）》
2016年第6期46-49,共4页
Journal of Yunnan Normal University:Natural Sciences Edition
基金
国家自然科学基金资助项目(21565033)
关键词
纳米金
制备
表征
紫外吸收光谱
粒径
Gold nanoparticle
Preparation
Characterization
Ultraviolet absorption spectrum
Particle size
