Acta Phys. -Chim. Sin. ›› 2013, Vol. 29 ›› Issue (02): 403-410.doi: 10.3866/PKU.WHXB201211022

• CATALYSIS AND SURFACE SCIENCE • Previous Articles     Next Articles

Preparation and Photocatalytic Activity of Rutile TiO2-Graphene Composites

GAN Yong-Ping, QIN Huai-Peng, HUANG Hui, TAO Xin-Yong, FANG Jun-Wu, ZHANG Wen-Kui   

  1. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
  • Received:2012-09-11 Revised:2012-11-01 Published:2013-01-14
  • Supported by:

    The project was supported by the Natural Science Foundation of Zhejiang Province, China (Y4110523, LY12E01003).


In this work, graphene oxide (GO) was prepared from natural flake graphite by the modified Hummers method. A series of composites consisting of rutile TiO2 and graphene (rGO-TiO2) were synthesized via a one-step hydrothermal reaction of graphene oxide and titanium isopropylate. The influence of the amount of graphene oxide on the photocatalytic activity of the rGO-TiO2 composites was studied. The photocatalysts were characterized by Brunauer-Emmett-Teller sorption (BET), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, UV-Vis absorbance spectroscopy, and photoluminescence (PL) spectroscopy. The as-formed TiO2 was formed in the rutile phase with a needle-cluster structure, and dispersed uniformly on the surface of graphene sheets. The composites possess higher specific areas than pure rutile TiO2. The photo-degradation performance of Rhodamine B and methyl orange by the rGO-TiO2 composites under ultraviolet and visible light was studied. The results indicated that rGO-TiO2 composites prepared with 0.5 mg·mL-1 of graphene oxide had the greatest photocatalytic activity.

Key words: Rutile TiO2, Graphene, Hydrothermal method, Photocatalysis, Organic pollutants


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