title: Transfer of biosynthesized gold nanoparticles from water into an ionic liquid using alkyltrimethyl ammonium bromide: an anion-exchange process.
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.
authors.affiliation: Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Zhou
authors.forename: Wenshuang
authors.initials: W
authors.lastname: Lin
authors.forename: Huixuan
authors.initials: H
authors.lastname: Wang
authors.forename: Qingbiao
authors.initials: Q
authors.lastname: Li
authors.forename: Jiale
authors.initials: J
authors.lastname: Huang
authors.forename: Mingming
authors.initials: M
authors.lastname: Du
authors.forename: Liqin
authors.initials: L
authors.lastname: Lin
authors.forename: Yixian
authors.initials: Y
authors.lastname: Gao
authors.forename: Ling
authors.initials: L
authors.lastname: Lin
authors.forename: Ning
authors.initials: N
authors.lastname: He
mesh_terms: D000077286:Cetrimonium; D002593:Cetrimonium Compounds / Q000737:chemistry*; D027423:Cinnamomum camphora / Q000378:metabolism; D006046:Gold / Q000737:chemistry* / Q000378:metabolism*; D007093:Imidazoles / Q000737:chemistry; D007474:Ion Exchange; D052578:Ionic Liquids / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D014867:Water / Q000737:chemistry*
chemical_list: C412621:1-butyl-3-methylimidazolium hexafluorophosphate; D002593:Cetrimonium Compounds; D007093:Imidazoles; D052578:Ionic Liquids; D014867:Water; D006046:Gold; D000077286:Cetrimonium