摘要
以硝酸银和丁二胺为基本原料，采用化学还原方法合成了银纳米粒子。考察了反应时间和反应温度等条件对生成银纳米粒子的影响。通过紫外-可见分光光度计及透射电子显微镜对所合成银纳米粒子的光学性质及形貌特征进行了表征。结果表明，丁二胺在反应过程中，既起到还原剂的作用，又对银纳米粒子的表面起到一定的修饰作用。银纳米粒子的水溶胶在紫外-可见吸收光谱图中能够产生纳米银所具有的表面等离子态的特征吸收峰。透射电子显微镜的结果表明球形银纳米微粒的尺寸在5～10nm范围内，且具有较窄的尺寸分布。
Sliver nanoparticles were synthesized by chemical reduction route applied silver nitrate and butanediamine as raw materials. The effects of reaction time and reaction temperature on the quality of obtained silver nanoparticles were studied. The optical properties and morphology were determined by UV - vis absorption spectroscopy and transmission microscopy. The results showed that butanediamine could act as both reducing agent and stabilizers for silver nanoparticles. The synthesized silver nanoparticles could give an apparent surface characteristic plasmon absorption peak for silver nanoparticles. TEM results showed that the silver nanoparticles had spherical morphological character and the sizes of silver nanoparticles were in the range of 5-10nm with narrow size distribution.
出处
《化工技术与开发》
CAS
2008年第10期7-9,60,共4页
Technology & Development of Chemical Industry
基金
辽宁省教育厅高等学校科学研究项目"形状可控银纳米微粒的化学合成制备"资助
项目编号:05L302
关键词
银
纳米粒子
丁二胺
紫外-可见吸收光谱
透射电子显微镜
silver
nanoparticles
butanediamine
UV-vis absorption spectra
transmission electron microscopy
