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One pot in situ growth of gold nanoparticles on amine-modified graphene oxide and their high catalytic properties

Authors
Journal
Applied Surface Science
0169-4332
Publisher
Elsevier
Publication Date
Volume
316
Identifiers
DOI: 10.1016/j.apsusc.2014.07.152
Keywords
  • One Pot
  • In Situ
  • [email protected] Ncs
  • Degradation
  • 4-Nitrophenol

Abstract

Abstract In this work, one pot strategy was proposed for in situ growth of Au nanoparticles (Au NPs) on the surface of amine-modified graphene oxide ([email protected]) nanosheets. Au NPs were generated via an in situ reduction of Au3+ by Cu+ which was linked to the surface of [email protected] nanosheets through inorganic grafting. The initial Au NPs then served as seed for subsequent particle growth. The as-obtained [email protected] nanocomposites ([email protected] NCs) exhibited high catalytic activity for the degradation of 4-nitrophenol, which was a refractory pollutant that occur in industrial waste water. The catalytic efficiency was examined by turnover frequency (TOF). It was calculated to be 595h−1, which was higher than that of other Au catalysts. Furthermore, the as-prepared catalyst showed high cycle stabilization during the catalytic reduction.

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