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Degradation of Methylene Blue Dye in the Presence of Visible Light Using SiO?@?-Fe?O? Nanocomposites Deposited on SnS? Flowers.

ABSTRACT: 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 SnS? (tin sulfide) was synthesized by a facile hydrothermal method. Core-shell structured SiO?@α-Fe?O? nanocomposites were then deposited on the top of the SnS? 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 SnS?-SiO?@α-Fe?O? 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 % SiO?@α-Fe?O? nanocomposites on SnS? flowers.

SUBMITTER: Balu S 

PROVIDER: S-EPMC6025432 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature

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

Balu Sridharan S   Uma Kasimayan K   Pan Guan-Ting GT   Yang Thomas C-K TC   Ramaraj Sayee Kannan SK  

Materials (Basel, Switzerland) 20180617 6

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 m  ...[more]

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