Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (7): 837-842.DOI: 10.11944/j.issn.1000-0518.2015.07.140381

• Full Papers • Previous Articles     Next Articles

Photoluminescence of Graphene Oxide and Hydrothermally Reduced Graphene Oxide

SHAN Yuna, b, *, ZHANG Honglinc, ZHANG Fenga   

  1. aSchool of Environmental Science,Nanjing Xiaozhuang University,Nanjing 211171,China
    bNational Laboratory of Solid State Microstructures and Department of Physics,Nanjing University,Nanjing 210093,China
    cSchool of Food Science,Nanjing Xiaozhuang University,Nanjing 211171,China
  • Received:2014-11-04 Accepted:2015-03-27 Published:2015-06-30 Online:2015-06-30
  • Contact: Yun SHAN
  • Supported by:
    Supported by the National Natural Science Foundation of China (No.21203098, No.21375067), Partially supported by Qing Lan Project of Jiangsu Province and China Postdoctoral Science Foundation (No.2013M530247)


Graphene oxide (GO) and reduced graphene oxide (RGO) were prepared by modified Hummers method and hydrothermal reduction, respectively. They were characterized by transmission electron microscopy (TEM), UV-Vis absorption spectroscopy (UV-Vis), Fourier transform infrared (FTIR) spectroscopy, and photoluminescence emission and excitation spectroscopy(PL, PLE). PL spectra indicate that the broad near-infrared(NIR) photoluminescence ranging from 600 to 800 nm can be acquired from graphene oxide under excitation of visible light. By comparing PL spectra from GO with that from RGO, and through the analysis of their UV-Vis absorption and FTIR spectra, the oxygen related groups, such as C=O and COOH, are found to be responsible for the NIR PL from GO. NIR fluorescence is favorable for bio-imaging because of its excellent penetrating ability and little damage to tissues. This indictates that GO has great potential applications in bio-imaging.


Key words: graphene oxide, reduced graphene oxide, oxygen related groups, near-infrared fluorescence

CLC Number: