Publication result detail

Green approach for preparation of reduced graphene oxide decorated with gold nanoparticles and its optical and catalytic properties

ŠIMŠÍKOVÁ, M.; BARTOŠ, M.; KEŠA, P.; ŠIKOLA, T.

Original Title

Green approach for preparation of reduced graphene oxide decorated with gold nanoparticles and its optical and catalytic properties

English Title

Green approach for preparation of reduced graphene oxide decorated with gold nanoparticles and its optical and catalytic properties

Type

WoS Article

Original Abstract

Graphene oxide (GO) was reduced and modified by gold nanoparticles using aqueous leaf extract of green tea. Successful formation of gold nanoparticles (AuNPs) on graphene oxide surface was determined by scanning electron microscopy (SEM). Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared analyses (FT-IR) have been used to demonstrate the behavior of complex of reduced graphene oxide with gold nanoparticles (rGO-AuNPs), the removal of oxygen-containing groups from the graphene, and subsequent formation of reduced graphene oxide (rGO). We also demonstrated the change of optical properties of GO after the reduction and formation of gold nanoparticles on its surface by UVevis spectroscopy and fluorescence spectroscopy. The positive impact of rGO-AuNPs composite on safranin T reduction in the presence of NaBH4 without light irradiation was examined, as well. The dye decolorization was observed within 60 min which highlights the exceptional catalytic potential of the rGO-AuNPs.

English abstract

Graphene oxide (GO) was reduced and modified by gold nanoparticles using aqueous leaf extract of green tea. Successful formation of gold nanoparticles (AuNPs) on graphene oxide surface was determined by scanning electron microscopy (SEM). Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared analyses (FT-IR) have been used to demonstrate the behavior of complex of reduced graphene oxide with gold nanoparticles (rGO-AuNPs), the removal of oxygen-containing groups from the graphene, and subsequent formation of reduced graphene oxide (rGO). We also demonstrated the change of optical properties of GO after the reduction and formation of gold nanoparticles on its surface by UVevis spectroscopy and fluorescence spectroscopy. The positive impact of rGO-AuNPs composite on safranin T reduction in the presence of NaBH4 without light irradiation was examined, as well. The dye decolorization was observed within 60 min which highlights the exceptional catalytic potential of the rGO-AuNPs.

Keywords

Chemical synthesis; Electron microscopy; Fourier transform infrared spectroscopy (FTIR); Raman spectroscopy; Optical properties

Key words in English

Chemical synthesis; Electron microscopy; Fourier transform infrared spectroscopy (FTIR); Raman spectroscopy; Optical properties

Authors

ŠIMŠÍKOVÁ, M.; BARTOŠ, M.; KEŠA, P.; ŠIKOLA, T.

RIV year

2017

Released

01.07.2016

ISBN

0254-0584

Periodical

MATERIALS CHEMISTRY AND PHYSICS

Volume

177

Number

1

State

Swiss Confederation

Pages from

339

Pages to

345

Pages count

7

URL

https://www.sciencedirect.com/science/article/pii/S0254058416302553

BibTex

@article{BUT126911,
  author="Michaela {Šimšíková} and Miroslav {Bartoš} and Peter {Keša} and Tomáš {Šikola}",
  title="Green approach for preparation of reduced graphene oxide decorated with gold nanoparticles and its optical and catalytic properties",
  journal="MATERIALS CHEMISTRY AND PHYSICS",
  year="2016",
  volume="177",
  number="1",
  pages="339--345",
  doi="10.1016/j.matchemphys.2016.04.036",
  issn="0254-0584",
  url="https://www.sciencedirect.com/science/article/pii/S0254058416302553"
}