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Open AccessArticle

Degradation of Methylene Blue Dye in the Presence of Visible Light Using SiO2@α-Fe2O3 Nanocomposites Deposited on SnS2 Flowers

1
Department of Chemical Engineering and biotechnology, National Taipei University of Technology, Taipei 106, Taiwan, [email protected] (S.B.)
2
Precision Analysis and Research Center, National Taipei University of Technology, Taipei 106, Taiwan
3
PG & Research Department of Chemistry, Thiagarajar College, Madurai 625009, Tamilnadu, India
*
Authors to whom correspondence should be addressed.
Materials 2018, 11(6), 1030; https://doi.org/10.3390/ma11061030
Received: 3 April 2018 / Revised: 4 June 2018 / Accepted: 13 June 2018 / Published: 17 June 2018
(This article belongs to the Section Catalytic Materials)
Semiconductor materials have been shown to have good photocatalytic behavior and can be utilized for the photodegradation of organic pollutants. In this work, three-dimensional flower-like SnS2 (tin sulfide) was synthesized by a facile hydrothermal method. Core-shell structured SiO2@α-Fe2O3 nanocomposites were then deposited on the top of the SnS2 flowers. The as-synthesized nanocomposites were characterized by X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV–Vis Spectroscopy, Brunauer–Emmett–Teller (BET) surface area analysis, and photoluminescence (PL) spectroscopy. The photocatalytic behavior of the SnS2-SiO2@α-Fe2O3 nanocomposites was investigated by observing the degradation of methylene blue (MB). The results show an effective enhancement of photocatalytic activity for the degradation of MB especially for the 15 wt % SiO2@α-Fe2O3 nanocomposites on SnS2 flowers. View Full-Text
Keywords: photocatalyst; flower-like SnS2; nanocomposites; visible light; methylene blue photocatalyst; flower-like SnS2; nanocomposites; visible light; methylene blue
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MDPI and ACS Style

Balu, S.; Uma, K.; Pan, G.-T.; Yang, T.C.-K.; Ramaraj, S.K. Degradation of Methylene Blue Dye in the Presence of Visible Light Using SiO2@α-Fe2O3 Nanocomposites Deposited on SnS2 Flowers. Materials 2018, 11, 1030.

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