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Integrated Ferroelectrics
An International Journal
Volume 145, 2013 - Issue 1
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Original Articles

Preparation and Photocatalytic Property of Graphene/TiO2 Composite Powder

S. Y. Cao College of Physics and Electronic Science, Changsha University of Science and Technology, Changsha, 410114, PR. China
,
C. S. Chen College of Physics and Electronic Science, Changsha University of Science and Technology, Changsha, 410114, PR. China
,
X. T. Ning College of Materials Science and Engineering, Hunan University, Changsha, 410082, PR. China
,
B. Zeng College of Physics and Electronic Science, Changsha University of Science and Technology, Changsha, 410114, PR. China
,
X. D. Xie College of Physics and Electronic Science, Changsha University of Science and Technology, Changsha, 410114, PR. China
,
X. H. Chen College of Materials Science and Engineering, Hunan University, Changsha, 410082, PR. China
,
S. S. Wei College of Physics and Electronic Science, Changsha University of Science and Technology, Changsha, 410114, PR. China
,
Y. P. Mei College of Physics and Electronic Science, Changsha University of Science and Technology, Changsha, 410114, PR. China
&
G. J. Zhao College of Physics and Electronic Science, Changsha University of Science and Technology, Changsha, 410114, PR. China
 show all
Pages 40-45 | Received 01 Aug 2012, Accepted 20 Apr 2013, Published online: 12 Jul 2013
 
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Abstract

Graphene/TiO2 (GR/TiO2) composite powders were prepared by co-precipitation method, and their morphology, structure and photocatalytic property were studied by scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction and ultraviolet spectrophotometer, respectively. The experimental results show that the photocatalytic activity of TiO2 is significantly improved by GR. When the content of GR in the composite powder is 7.88%, the GR/TiO2 composite powders treated at 500°C display the good photocatalytic performance in which the degradation volume of methyl orange (MO) approaches 100% within 120 min. The improvement for photocatalytic properties of TiO2 is attributed to the special structure and excellent electrical properties of GR.

Acknowledgments

This projects is supported by National Science Foundation of China (Nos. 50972043 and 51154001), Hunan Provincial Natural Science Foundation of China (No. 09JJ3095), the Postdoctoral Science Foundation of China (Nos. 200801340 and 20070420820), and Scientific Research Fund of Hunan Provincial Education Department (No. 09A001) for finance.

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