| pH值对硫醇修饰的金纳米粒子聚集态的影响 |
| |
| 引用本文： | 徐娇珍,华南平,杨平,杜玉扣.pH值对硫醇修饰的金纳米粒子聚集态的影响[J].化学研究,2003,14(4):16-18. |
| |
| 作者姓名： | 徐娇珍 华南平 杨平 杜玉扣 |
| |
| 作者单位： | 苏州大学,化学化工系,江苏,苏州,215006 |
| |
| 基金项目： | 国家自然科学基金(90207026). |
| |
| 摘 要： | 制备了3 巯基丙酸修饰的金纳米颗粒,溶胶的pH值变化导致颗粒表面的电荷发生变化.随着pH值的降低,颗粒的聚集体增大,在pH值小于4时颗粒下沉.加碱增大溶胶的pH值,聚集的颗粒会重新分散.
|
| 关 键 词： | 金纳米颗粒 3-巯基丙酸 pH值 |
| 文章编号： | 1008-1011(2003)04-0016-03 |
| 修稿时间： | 2003年7月10日 |
pH Effects on the Aggregation of Gold Nanoparticles Modified by 3-Mercaptopropionic Acid |
| |
| XU Jiao-zhen,HUA Nan-ping,YANG Ping,DU Yu-kou.pH Effects on the Aggregation of Gold Nanoparticles Modified by 3-Mercaptopropionic Acid[J].Chemical Research,2003,14(4):16-18. |
| |
| Authors: | XU Jiao-zhen HUA Nan-ping YANG Ping DU Yu-kou |
| |
| Institution: | XU Jiao-zhen,HUA Nan-ping,YANG Ping,DU Yu-kou~* |
| |
| Abstract: | The gold nanoparticles were prepared in the presence of 3-mercaptopropionic acid. The different pH values of Au colloids induced the change of charge on particles surface. The bigger aggregation could be observed at lower pH value and the precipitation occurred to the gold particles when pH value was below 4. However, the aggregated spheroid could re-disperse and colloids could be formed again when adjusting pH to above 7. |
| |
| Keywords: | gold nanoparticles 3-mercaptopropionic acid pH values |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
