Synthesis of highly stable gold nanoparticles using conventional and geminal ionic liquids

被引：48
|
作者：
Safavi, A. [1 ]
Zeinali, S.
机构：
[1] Shiraz Univ, Dept Chem, Coll Sci, Shiraz 71454, Fars, Iran
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2010年 / 362卷 / 1-3期
关键词：
Gold nanoparticle synthesis; Ionic liquid; Geminal; Spectroscopy; SHAPE-CONTROLLED SYNTHESIS; SIZE-DEPENDENT FORMATION; HIGH-YIELD SYNTHESIS; METAL NANOPARTICLES; MEDIATED SYNTHESIS; STABILIZED GOLD; PARTICLES; BROMIDE; ADSORPTION; NANORODS;
D O I：
10.1016/j.colsurfa.2010.04.002
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Highly stable and hydrophilic ionic liquid-capped gold nanoparticles were synthesized by in situ reduction of HAuCl4 with NaBH4 in an aqueous medium. Two kinds of ionic liquids (ILs) were used in this work: namely, 1-dodecyl-3-methylimidazolium chloride [C(12)mim][Cl] and a geminal-IL (GIL), 1,4-bis(methylimidazolium-1yl)dodecane bromide, with two hydrophilic head groups. Prepared gold nanoparticles were characterized by UV-vis spectra, transmission electron microscopy (TEM), dynamic light scattering (DLS) analysis and FTIR spectroscopy. To the best of our knowledge this is the first report on using these types of ILs in gold nanoparticle synthesis. The results showed the synthesis of low polydispersed and stable gold nanoparticles with sizes about 10 nm. The IL ([C(12)mim][Cl]) capped gold nanoparticles were stable for at least 8 months. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：121 / 126
页数：6
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