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Title: Combustion synthesis of CdS/reduced graphene oxide composites and their photocatalytic properties

Highlights: • CdS/reduced graphene oxide composites were prepared by a combustion method. • The phase changed from hexagonal to cubic phase by increasing the added amount of GO. • The composites showed excellent visible-light photocatalytic properties. • The plausible mechanism of photodegradation was discussed. - Abstract: CdS/reduced graphene oxide composites were synthesized by a simple one-pot combustion method using cadmium nitrate, thiourea and graphite as raw materials. The structure, morphologies, and photocatalytic properties of the as-prepared samples were studied by means of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, photoluminescence and ultraviolet–visible spectrophotometry. The results show that the structure of CdS in as-prepared samples changes from hexagonal to cubic phase by increasing the added amount of graphene oxide. During combustion reaction, graphene oxide was reduced to reduced graphene oxide. As-obtained CdS/reduced graphene oxide composites show high visible-light photoactivities, attributed to the minimized recombination of photoinduced electrons and holes and the high surface area of reduced graphene oxide sheets.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [1] ;  [2]
  1. School of Materials Science and Engineering, Liaocheng University, Liaocheng, Shandong 252000 (China)
  2. Department of Physics and Center for Marine-Integrated Biomedical Technology, Pukyong National University, Busan 608-737 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22420540
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 57; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CADMIUM NITRATES; CADMIUM SULFIDES; CARBON OXIDES; COMPOSITE MATERIALS; ELECTRONS; EMISSION SPECTRA; GRAPHENE; GRAPHITE; HOLES; INFRARED SPECTRA; OPTICAL PROPERTIES; PHOTOCATALYSIS; PHOTOLUMINESCENCE; RAMAN SPECTROSCOPY; RECOMBINATION; SCANNING ELECTRON MICROSCOPY; SPECTROPHOTOMETRY; TRANSMISSION ELECTRON MICROSCOPY; ULTRAVIOLET RADIATION; X-RAY DIFFRACTION