Chem. J. Chinese Universities ›› 2014, Vol. 35 ›› Issue (12): 2612.doi: 10.7503/cjcu20140701

• Physical Chemistry • Previous Articles     Next Articles

Synthesis and Characterization of Graphene Film via Photo-chemical Reduction of Graphene Oxide

LI Bing1,*(), GAO Feng1, YANG Guangmin1, TIAN Miaomiao1, QU Xuesong1, ZHANG Xintong2,*()   

  1. 1. College of Physics, Changchun Normal University, Changchun 130032, China
    2. Key Laboratory for UV-Emitting Materials and Technology, Ministry of Education,Northeast Normal University, Changchun 130024, China
  • Received:2014-07-28 Online:2014-12-10 Published:2014-10-13
  • Contact: LI Bing,ZHANG Xintong E-mail:lib837@nenu.edu.cn;xtzhang@nenu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.50832001, 51072032, 11404036), the Specialized Research Fund for the Doctoral Program of Higher Program of Higher Education, China(No.20120043110002), the Natural Science Foundation of Changchun Normal University, China(No.2014-001), the China Postdoctoral Science Foundation Funded Project(No.801141004412) and “the Twelfth Five- year” Planning Project of Jilin Provincial Education Department Foundation, China(Nos.2013-257, 2013-454)

Abstract:

Graphene film pattern was prepared by photo-chemical reduction. The thermal stability and photoluminescence(PL) properties of photo-chemical reduction graphene oxide(PRGO) were studied. Thermogravimetric analysis(TGA) results show that the photochemical reduction mainly causes the decrease of oxidation groups in the graphene oxide(GO) sheets, but has little effect on the water content in GO. PL results show that the emission of PRGO is obviously different from those of common-method-made GO when different laser wavelengths are used for excitation. When excited with 514 nm laser, the PL intensity of PRGO was lower than that of GO, accompanied with a red-shift of emission peak. In contrast, when an 830 nm laser is used, the PL intensity of PRGO is slightly higher than that of GO while the PL center positions are similar. The results indicate that the sp2C clusters with different sizes have different photoreduction activity, which is closely related to the unique band structures of GO.

Key words: Photo-chemical reduction, Graphene oxide, Photoluminescence property

CLC Number: 

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