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Citation: LI Xiao-Hui, LIU Shou-Xin. Characterization of Visible Light Response N-F Codoped TiO₂ Photocatalyst Prepared by Acid Catalyzed Hydrolysis[J]. Acta Physico-Chimica Sinica, ;2008, 24(11): 2019-2024. doi: 10.1016/S1872-1508(08)60079-0 shu

Characterization of Visible Light Response N-F Codoped TiO₂ Photocatalyst Prepared by Acid Catalyzed Hydrolysis

1.
College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, P. R. China

Received Date: 14 May 2008
Available Online: 25 August 2008

N-FcodopedTiO2 (TONF) photocatalystswere prepared usingacidcatalyzed hydrolysismethod frommixed aqueous solution of TiCl4 and NH4F. The photocatalytic activity of the TONF was evaluated through the degradation of phenol under both visible and UVlight irradiation. X-ray photoelectron spectroscopy (XPS), UV-Vis diffuse reflectance spectroscopy (DRS), X-ray diffraction (XRD), scanning electron microscope (SEM), and N2 adsorption isotherm were used to characterize the obtained powders. The results showed that N-F co-doped TiO2 exhibited significant improvement of visible light catalytic activity. N-F co-doping could improve dispersion of TiO2, inhibit particle size agglomeration, and retard phase transformation. Doped N could extend the light response of TiO2 to visible light region. In addition, narrower band gap formed by F-doping was beneficial to the high visible light photocatalytic activity.
- TiO2,
- N-F codoping,
- Visible light,
- Photocatalyst
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沈阳化工大学材料科学与工程学院沈阳 110142

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Characterization of Visible Light Response N-F Codoped TiO2 Photocatalyst Prepared by Acid Catalyzed Hydrolysis

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通讯作者: 陈斌, bchen63@163.com

Characterization of Visible Light Response N-F Codoped TiO₂ Photocatalyst Prepared by Acid Catalyzed Hydrolysis