Journal
CERAMICS INTERNATIONAL
Volume 40, Issue 9, Pages 14051-14060Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.05.133
Keywords
Graphene; D-Pencillamine; Bi2S3 microflowers; Photocatalysis; Crystal violet
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Bismuth sulphide (Bi2S3)/reduced graphene oxide (RGO) composites were fabricated using facile single step process using D-pencillamine as a sulphur source. Fourier Transformer Infra Red spectroscopy (FT-IR), X-Ray Diffraction (XRD), Raman Spectroscopy, Scanning Electron Microscopy (SEM), High Resolution Transmission Electron Microscopy (HR-TEM), and Electrochemical Impedance Spectroscopy (EIS) were employed to characterize and evaluate the properties of Bi2S3/RGO composites. This paper delivers a systematic investigation on the incorporation of the RGO on Bi2S3 microflowers for high efficiency visible light photocatalytic degradation of crystal. violet dye (CV). As synthesized Bi2S3 microflower/RGO composites show tremendous improved photocatalytic performance than pure Bi2S3 microflowers. The superior photocatalytic activity of the Bi2S3/RGO composite was due to the enhanced light absorption, reduced recombination rate, and efficient charge transfer by incorporation of RGO. The degradation efficiency of Bi2S3/RGO 3% shows higher photocatalytic activity than pure Bi2S3 and commercialized TiO2. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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