Preprint Article Version 1 This version is not peer-reviewed

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

Version 1 : Received: 3 April 2018 / Approved: 3 April 2018 / Online: 3 April 2018 (10:53:52 CEST)

How to cite: Balu, S.; Uma, K.; Pan, G.; Yang, T.C.; Ramaraj, S.K. Degradation of Methylene Blue Dye in the Presence of Visible Light Using SiO2@α-Fe2O3 Nanocomposites Deposited on SnS2 Flowers. Preprints 2018, 2018040036 (doi: 10.20944/preprints201804.0036.v1). Balu, S.; Uma, K.; Pan, G.; Yang, T.C.; Ramaraj, S.K. Degradation of Methylene Blue Dye in the Presence of Visible Light Using SiO2@α-Fe2O3 Nanocomposites Deposited on SnS2 Flowers. Preprints 2018, 2018040036 (doi: 10.20944/preprints201804.0036.v1).

Abstract

Semiconductor materials have been shown to have better photocatalytic behavior and can be utilized for the photodegradation of organic pollutants. In this work, three-dimensional flower-like SnS2 were 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), Brunauer-Emmett-Teller (BET) and photoluminescence spectroscopy (PL). The photocatalytic behavior of the SnS2-SiO2@α-Fe2O3 nanocomposites was observed 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.

Subject Areas

photocatalyst; flower-like SnS2; nanocomposites; visible light; methylene blue

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