Preparation and characterization of Fe3+-doped nanometer TiO2 photocatalysts



Fe3+-doped nanometer TiO2 photocatalysts were prepared by sol-gel technique. TiO2 powders with different Fe3+/Ti4+ molar ratios ranging from 0.05% to 25% were synthesized by calcinating the gels in the temperature range of 200–600°C. The effects of the content of iron ions and calcination temperature on the physical properties of the powders and their photocatalytic activities were examined by the photodecomposition of methyl orange in sunlight. The results show that Fe dopant can decrease the temperature of nanatase-rutile transformation. The ideal photocatalytic property was achieved when the sample with an Fe3+/Ti4+ ratio of 20 at% was calcined at about 300°C for an hour, which is superior to that of commercial Degussa P-25. The optimum microstructure of the Fe-doped TiO2 for a high photocatalytic activity in sunlight is consisted of nanatase and rutile.

Key words

titania Fe3+-doping sunlight methyl orange photocatalytic degradation 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    W R Sheng, W K Zhao,et al. TiO2-based Photocatalysis and Its Applications for Waste Water Treatment[J].Pro. in Chem., 1998, 10:349–361Google Scholar
  2. [2]
    Y Xu, W Zheng,et al. Enhanced Photocatalytic Activity of Supported TiO2 Dispersing Effect of SiO2[J].J. Photochem. Photobiol., A. Chem., 1999, 122:57–60CrossRefGoogle Scholar
  3. [3]
    H Ibrahim, H Delasa. Novel Photocatalytic Reactor for the Destruction of Airborne Pollutants[J].React. Eng. Pollut. Prev, 2000: 127–135Google Scholar
  4. [4]
    J Moon, H Takgai,et al. Preparation and Characterization of the Sb-doped TiO2 Photocatalysts [J].J. Mater. Sci., 2001, 36:949–955CrossRefGoogle Scholar
  5. [5]
    F He, Q T Li,et al. Preparation of Nanometer-structured TiO2 Thin Films by Sol-gel Methods[J].J. Wuhan University of Technology-Mater. Sci. Ed., 2002, 17:51–53Google Scholar
  6. [6]
    N Uekawa, Y Kurashima,et al. Preparation and Nonstoichiometric Property of Wide Compositional Fe(III)-doped TiO2 (anatase)[J].Mater. Res. Soc., 2000, 15:967–973Google Scholar
  7. [7]
    Ch Lu, P Tang,et al. Study on Photocatalysis of Fe3+/V5+/TiO2 Nanometer Particles[J].Chem. Res. and Appl. China, 2002, 14:265–268Google Scholar
  8. [8]
    L E Depero, A Marino,et al. Morphology and Microstructural Properties of TiO2 Nanopowders Doped with Trivalent Al and Ga Cations[J].J. Mater. Res., 2000 15:2080–2086CrossRefGoogle Scholar
  9. [9]
    B Pal, M Sharon,et al. Prepatation and Characterization of TiO2/Fe2O3 Binary Mixed Oxides and Its Photocatalytic Properties [J].Mater. Chem. and Phys., 1999, 59:254–261CrossRefGoogle Scholar

Copyright information

© Wuhan University of Technology 2006

Authors and Affiliations

  • Liu Junwu
    • 1
  • Zheng Zhixiang
    • 1
  • Zuo Kaihui
    • 1
  • Wu Yucheng
    • 1
  1. 1.College of Materials Science and EngineeringHefei University of TechnologyHefeiChina

Personalised recommendations