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A facile hydrothermal approach for catalytic and optical behavior of tin oxide- graphene (SnO2/G) nanocomposite

Year: 2018

Type: article

Abstract: A cost-effective, facile hydrothermal approach was made for the synthesis of SnO 2 /graphene (Gr) nano-composites.XRD diffraction spectra clearly confirmed the presence of tetragonal crystal system of SnO 2 which was maintaining its structure in both pure and composite materials' matrix.The stretching and bending vibrations of the functional groups were analyzed using FTIR analysis.FESEM images illustrated the surface morphology and the texture of the synthesized sample.HRTEM images confirmed the deposition of SnO 2 nanoparticles over the surface of graphene nano-sheets.Raman Spectroscopic analysis was carried out to confirm the in-plane blending of SnO 2 and graphene inside the composite matrix.The photocatalytic performance of the synthesized sample under UV irradiation using methylene blue dye was observed.Incorporation of grapheme into the SnO 2 sample had increased the photocatalytic activity compared with the pure SnO 2 sample.The electrochemical property of the synthesized sample was evaluated. 1.IntroductionRecently research interest revolved around the fabrication of semiconductor metal oxide nanoparticles with tunable morphologies and distinct properties.Based on their structure and synthesis strategy, the electrical, optical and catalytic properties can be altered significantly.Tinoxide (SnO 2 ) with different architectural structure including 1D nanorods, 2D nanosheets and 3D nanostructure can exhibit fast charge transportation properties [1] which enable them to be used as promising candidate for electrode preparation.To date, the reported synthesis process of tin-oxide nanoparticles need multiple steps with manipulation of process variables which is less efficient and time consuming [2,3].The literature has reported on growing SnO 2 nanorods onto the surface of graphene nanosheets that require some organic compounds for their synthesis process.During the synthesis process, these compounds strongly adsorbed over

Source: PLoS ONE

DOI: 10.1371/journal.pone.0202694