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

Journal Article · Mon Sep 15 00:00:00 EDT 2014 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2014.05.027· OSTI ID:22420540

Liu, Jianxiu ^[1]; Pu, Xipeng ^[1]; Zhang, Dafeng ^[1]; Du, Kaiping ^[1]; Cai, Peiqing ^[2]

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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)

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.

• OSTI ID: 22420540
• Journal Information: Materials Research Bulletin, Vol. 57; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

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