Recovery of gold nanoparticles using pH-sensitive microgels

Mohamad Azwani Shah Mat Lazim, Julian Eastoe, Melanie Bradley, Kieran Trickett, Azmi Mohamed, Sarah E. Rogers

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A simple method to disperse and recover gold nanoparticles (AuNPs) based on pH-induced heteroaggregation of mixed positive/negative aqueous microgels (MGs) is described. Interestingly, stability of these composite inorganic-organic systems can be readily and reversibly controlled by using pH, affording flocculated (pH 3) or re-dispersed (pH 10) Au-NPs as desired. Atomic absorption spectroscopy shows that an efficient and effective recovery of the AuNPs can be achieved. These systems provide novel triggerable and recyclable alternatives to classical recovery methods.

Original languageEnglish
Pages (from-to)2050-2055
Number of pages6
JournalSoft Matter
Volume6
Issue number9
DOIs
Publication statusPublished - 2010
Externally publishedYes

Fingerprint

Gold
recovery
gold
Nanoparticles
Recovery
Atomic spectroscopy
nanoparticles
Absorption spectroscopy
Composite materials
absorption spectroscopy
composite materials

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Mat Lazim, M. A. S., Eastoe, J., Bradley, M., Trickett, K., Mohamed, A., & Rogers, S. E. (2010). Recovery of gold nanoparticles using pH-sensitive microgels. Soft Matter, 6(9), 2050-2055. https://doi.org/10.1039/c002511a

Recovery of gold nanoparticles using pH-sensitive microgels. / Mat Lazim, Mohamad Azwani Shah; Eastoe, Julian; Bradley, Melanie; Trickett, Kieran; Mohamed, Azmi; Rogers, Sarah E.

In: Soft Matter, Vol. 6, No. 9, 2010, p. 2050-2055.

Research output: Contribution to journalArticle

Mat Lazim, MAS, Eastoe, J, Bradley, M, Trickett, K, Mohamed, A & Rogers, SE 2010, 'Recovery of gold nanoparticles using pH-sensitive microgels', Soft Matter, vol. 6, no. 9, pp. 2050-2055. https://doi.org/10.1039/c002511a
Mat Lazim MAS, Eastoe J, Bradley M, Trickett K, Mohamed A, Rogers SE. Recovery of gold nanoparticles using pH-sensitive microgels. Soft Matter. 2010;6(9):2050-2055. https://doi.org/10.1039/c002511a
Mat Lazim, Mohamad Azwani Shah ; Eastoe, Julian ; Bradley, Melanie ; Trickett, Kieran ; Mohamed, Azmi ; Rogers, Sarah E. / Recovery of gold nanoparticles using pH-sensitive microgels. In: Soft Matter. 2010 ; Vol. 6, No. 9. pp. 2050-2055.
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