Synthesis and investigation of SnS2/RGO nanocomposites with different GO concentrations: structure and optical properties, photocatalytic performance

Synthesis and investigation of SnS2/RGO nanocomposites with different GO concentrations:... In this study, we report the synthesis of tin disulfide/reduced graphrene oxide (SnS2/RGO) nanocomposites by a simple one-step hydrothermal method. In order to investigate the effect of RGO on the structure and optical properties and photocatalytic activity of the products a series of nanocomposites was prepared with different concentrations of GO. The samples were examined using X-ray diffraction, field emission scanning electron microscopy (FESEM), Raman spectroscopy, UV–Vis spectroscopy and photoluminescence techniques. The results confirmed the growth of SnS2 with the hexagonal phase. FESEM analysis showed that the hexagonal tin disulfide nanoplates are uniformly dispersed on the surface of the graphene oxide sheets. The optical examination of SnS2 and SnS2/RGO nanocomposites indicated that the band gaps of all nanocomposites are greater than that of SnS2 due to the quantum confinement effect. The photocatalytic activity of the SnS2/RGO nanocomposites was investigated for degradation of the acid orange 7 dye under visible light. It was observed that all nanocomposites have a higher photocatalytic activity for the degradation in comparison with pure SnS2. The optimum concentration of GO in SnS2/RGO nanocomposite for achieving the highest photocatalytic efficiency (81%) was determined as 2 mg ml−1 during 180 min. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

Synthesis and investigation of SnS2/RGO nanocomposites with different GO concentrations: structure and optical properties, photocatalytic performance

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Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-017-8392-2
Publisher site
See Article on Publisher Site

Abstract

In this study, we report the synthesis of tin disulfide/reduced graphrene oxide (SnS2/RGO) nanocomposites by a simple one-step hydrothermal method. In order to investigate the effect of RGO on the structure and optical properties and photocatalytic activity of the products a series of nanocomposites was prepared with different concentrations of GO. The samples were examined using X-ray diffraction, field emission scanning electron microscopy (FESEM), Raman spectroscopy, UV–Vis spectroscopy and photoluminescence techniques. The results confirmed the growth of SnS2 with the hexagonal phase. FESEM analysis showed that the hexagonal tin disulfide nanoplates are uniformly dispersed on the surface of the graphene oxide sheets. The optical examination of SnS2 and SnS2/RGO nanocomposites indicated that the band gaps of all nanocomposites are greater than that of SnS2 due to the quantum confinement effect. The photocatalytic activity of the SnS2/RGO nanocomposites was investigated for degradation of the acid orange 7 dye under visible light. It was observed that all nanocomposites have a higher photocatalytic activity for the degradation in comparison with pure SnS2. The optimum concentration of GO in SnS2/RGO nanocomposite for achieving the highest photocatalytic efficiency (81%) was determined as 2 mg ml−1 during 180 min.

Journal

Journal of Materials Science: Materials in ElectronicsSpringer Journals

Published: Dec 8, 2017

References

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