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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
Type
journal article in Web of Science
Language
English
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.
Keywords
Chemical synthesis; Electron microscopy; Fourier transform infrared spectroscopy (FTIR); Raman spectroscopy; Optical properties
Authors
ŠIMŠÍKOVÁ, M.; BARTOŠ, M.; KEŠA, P.; ŠIKOLA, T.
Released
1. 7. 2016
ISBN
0254-0584
Periodical
MATERIALS CHEMISTRY AND PHYSICS
Year of study
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" }