Transfer of biosynthesized gold nanoparticles from water into an ionic liquid using alkyltrimethyl ammonium bromide: an anion-exchange process

Yao Zhou; Wenshuang Lin; Huixuan Wang; Qingbiao Li; Jiale Huang; Mingming Du; Liqin Lin; Yixian Gao; Ling Lin; Ning He

doi:10.1021/la103586f

Transfer of biosynthesized gold nanoparticles from water into an ionic liquid using alkyltrimethyl ammonium bromide: an anion-exchange process

Langmuir. 2011 Jan 4;27(1):166-9. doi: 10.1021/la103586f. Epub 2010 Nov 17.

Authors

Yao Zhou¹, Wenshuang Lin, Huixuan Wang, Qingbiao Li, Jiale Huang, Mingming Du, Liqin Lin, Yixian Gao, Ling Lin, Ning He

Affiliation

¹ Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China.

PMID: 21082816
DOI: 10.1021/la103586f

Abstract

Biosynthesized gold nanoparticles (GNPs) were transferred from water to a hydrophobic ionic liquid (IL), [Bmim]PF(6), with the assistance of alkyl trimethyl ammonium bromide. The phase transfer mechanism was illustrated through the exemplification of cetyltrimethyl ammonium bromide (CTAB). Interaction between GNPs and CTAB was demonstrated through zeta potential analysis. Moreover, an anion-exchange process was discovered between CTAB and IL. During the process, the hydrophobic CTAPF(6) formed in situ on the GNPs led to the hydrophobization and thus phase transfer of the GNPs. The phase transfer efficiency was found to be size-dependent.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Cetrimonium
Cetrimonium Compounds / chemistry*
Cinnamomum camphora / metabolism
Gold / chemistry*
Gold / metabolism*
Imidazoles / chemistry
Ion Exchange
Ionic Liquids / chemistry*
Metal Nanoparticles / chemistry*
Particle Size
Water / chemistry*

Substances

1-butyl-3-methylimidazolium hexafluorophosphate
Cetrimonium Compounds
Imidazoles
Ionic Liquids
Water
Gold
Cetrimonium