One-pot eco-friendly synthesis of gold nanoparticles by glycerol in alkaline medium: Role of synthesis parameters on the nanoparticles characteristics

被引：19

作者：

Ferreira, Eduardo B. ^{[1
]}

Gomes, Janaina F. ^{[1
]}

Tremiliosi-Filho, Germano ^{[1
]}

Gasparotto, Luiz H. S. ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

来源：

MATERIALS RESEARCH BULLETIN | 2014年 / 55卷

基金：

巴西圣保罗研究基金会;

关键词：

Metals; Nanostructures; Chemical synthesis; Electron microscopy; GREEN SYNTHESIS; SIZE; ABSORPTION; NANOPRISMS; REDUCTION; CELLS; AG;

D O I：

10.1016/j.materresbull.2014.04.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work we studied the role of experimental variables in an ecologically-correct synthesis of gold nanoparticles carried out by glycerol in alkaline medium at ordinary temperatures (25 degrees C and 0 degrees C). Variation of pH allowed the production of spherical and anisotropic nanoparticles. Different concentrations of polyvinylpyrrolidone (PVP) directly impacted the size and stability of the nanoparticles. In contrast, glycerol concentration had little influence on the synthetic process. The empirical rate law was determined for the process with respect to glycerol and gold ions. From the kinetic study it was possible to establish that the rate of nanoparticle formation is only slightly more dependent on gold ions than on glycerol. Thus, to increase the rate of nanoparticles formation, it is economically and environmentally more advantageous to increase the glycerol concentration than the Au3+. concentration. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：131 / 136

页数：6

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