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A simple approach for preparing a visible-light TiO2 photocatalyst

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Abstract

The surface of titanium dioxide nanoparticles has been chemically modified with toluene 2,4-di-isocyanate (TDI). The modified titanium dioxide can efficiently absorb visible irradiation. The samples were characterized by means of wide-angle X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), diffuse reflectance UV–Vis spectroscopy (DRS), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The as-prepared photocatalyst exhibited good photostability and photocatalytic performance in the degradation of organic compounds. For model organic pollutants, modified titanium dioxide had excellent visible-light photocatalytic performance and the surface chemistry linkage product had high photostability.

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Acknowledgments

This work was supported by the Science and Technology Commission of Shanghai Municipality (07JC14015), the Shanghai Nanotechnology Promotion Center (0752nm001), the National Nature Science Foundation of China (20773039, 20577009), the National Basic Research Program of China (973 Program, 2007CB613301, 2004CB719500), and the Ministry of Science and Technology of China (2006AA06Z379, 2006DFA52710).

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Authors and Affiliations

  1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, Peoples Republic of China

    Weiwei Zou, Jin-Long Zhang & Feng Chen

  2. Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka, 599-8531, Japan

    Masakazu Anpo

  3. Shanghai National Engineering Research Center for Nanotechnology, 245# Jiachuan Road, 200237, Shanghai, Peoples Republic of China

    Dan-Nong He

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  1. Weiwei Zou
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  2. Jin-Long Zhang
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  3. Feng Chen
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  4. Masakazu Anpo
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Correspondence to Jin-Long Zhang.

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Zou, W., Zhang, JL., Chen, F. et al. A simple approach for preparing a visible-light TiO2 photocatalyst. Res Chem Intermed 35, 717–726 (2009). https://doi.org/10.1007/s11164-009-0093-x

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  • DOI: https://doi.org/10.1007/s11164-009-0093-x

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