Detail publikačního výsledku

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.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

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

Rok RIV

2017

Vydáno

01.07.2016

ISSN

0254-0584

Periodikum

MATERIALS CHEMISTRY AND PHYSICS

Svazek

177

Číslo

1

Stát

Švýcarská konfederace

Strany od

339

Strany do

345

Strany počet

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"
}