高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (12): 1987.

• 研究快报 • 上一篇    下一篇

云母表面金纳米颗粒单层膜的制备

郭薇, 魏莉, 张昕彤, 白玉白   

  1. 吉林大学化学系, 长春 130023
  • 收稿日期:2001-05-30 出版日期:2001-12-24 发布日期:2001-12-24
  • 通讯作者: 白玉白(1941年出生),男,教授,博士生导师,从事凝聚态物质的光物理与光化学研究.E-mail:yubai@jlu.edu.cn E-mail:yubai@jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20073016)资助

The Assembly of Gold Nanoparticulate Monolayer onto Mica Substrate

GUO Wei, WEI Li, ZHANG XinTong, BAI YuBai   

  1. Department of Chemistry, Jilin University, Changchun 130023, China
  • Received:2001-05-30 Online:2001-12-24 Published:2001-12-24

关键词: 金纳米颗粒, 云母基底, 组装, 静电吸附

Abstract: Gold nanoparticles, prepared by the Frens method, have been electrostatically assemblied onto mica substrates treated with different concentration of MnCl2 solution. The assemblies have been investigated by means of atomic force microscopy(AFM). The immersing time of bare mica in Mn2+ solution and the concentration of Mn2+ solution both have significant effect on the assembled process of gold nanoparticulate monolayer. The coverage of gold particles shows periodical evolution on the immersing time of mica in MnCl2 solution. The higher is the concentration of MnCl2, the shorter is the time to attain maximum coverage. An ionexchanged and layerdissociated mechanism is put forth to explain the experimental results above.

Key words: Gold nanoparticles, Mica substrate, Assembly, Eletrostatical adsorption

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