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A simple approach for preparing a visible-light TiO2 photocatalyst |
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| Authors: | Weiwei Zou Jin-Long Zhang Feng Chen Masakazu Anpo Dan-Nong He |
| Institution: | 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 2. Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka, 599-8531, Japan 3. Shanghai National Engineering Research Center for Nanotechnology, 245# Jiachuan Road, 200237, Shanghai, Peoples Republic of China |
| 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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