Transition Metal Chemistry

, Volume 35, Issue 8, pp 933–938 | Cite as

Enhanced photocatalytic activity for titanium dioxide by co-modification with copper and iron

  • Dongfang ZhangEmail author


A copper(II) and iron(III) co-modified titanium dioxide nano material was prepared by a simple sol–gel process using titanium(IV) isopropoxide plus copper(II) and iron(III) nitrates as raw materials. The as-prepared nanocomposites were characterized by X-ray diffraction (XRD), diffuse reflectance spectroscopy and photoluminescence spectra. The XRD results showed that the undoped TiO2 nanoparticles mainly include anatase phase while the Cu, Fe-codoped TiO2 nanoparticles showed a mixture of anatase phase with a small fraction of rutile phase displaying higher activity than the pure anatase phase. Optical characterization showed that the codoping with copper(II) and iron(III) resulted in a red shift of adsorption and lower recombination probability between electrons and holes, which were associated with high photocatalytic activity of the Cu, Fe-codoped TiO2 nanoparticles under visible light (λ > 400 nm). The photocatalytic activity of the samples was tested by aqueous methyl orange degradation. The capability of the codoped catalyst was much higher than that of the pure TiO2 catalyst under visible irradiation. A mechanism is proposed in order to account for the enhanced catalytic activity.


TiO2 Photocatalytic Activity Methyl Orange Anatase Phase Rutile Phase 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was supported by the Fundamental Research Funds for the Central Universities and Huazhong Agricultural University Scientific & Technological Self-innovation Foundation (2009QC016).


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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.College of ScienceHuazhong Agricultural UniversityWuhanPeople’s Republic of China

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