Effects of intermicellar exchange rate on the formation of silver nanoparticles in reverse microemulsions of AOT

被引：217

作者：

Bagwe, RP ^{[1
]}

Khilar, KC ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem Engn, Bombay 400076, Maharashtra, India

来源：

LANGMUIR | 2000年 / 16卷 / 03期

关键词：

D O I：

10.1021/la980248q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the effects of intermicellar exchange rate on absorption spectra and particle size of silver nanoparticles synthesized in reverse micelles of AOT. The silver nanoparticles are prepared by the method of mixing of two microemulsions, one containing the silver nitrate and the other containing sodium borohydride. The intermicellar exchange rate is varied by changing the organic solvent, surfactant (SDS, NP-5, and DTAB), and organic (benzyl alcohol and toluene) additives. The higher intermicellar exchange rate is found to give smaller particle size and blue shift in the absorption spectra. An interesting and potentially useful effect has been observed in that addition of a small amount of a nonionic surfactant significantly reduces the particle size.

引用

页码：905 / 910

页数：6

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