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Citation: FENG Cai-Xia, WANG Yan, JIN Zhen-Sheng, ZHANG Shun-Li. Kinetic Behavior of Visible Light Photocatalytic Oxidation of Propylene for N-Doped Nano-TiO₂[J]. Acta Physico-Chimica Sinica, ;2008, 24(04): 633-638. doi: 10.3866/PKU.WHXB20080415 shu

Kinetic Behavior of Visible Light Photocatalytic Oxidation of Propylene for N-Doped Nano-TiO₂

1.
College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan Province, P. R. China; Functional Material Research Center, Kaifeng University, Kaifeng 475004, Henan Province, P. R. China

Received Date: 22 August 2007
Available Online: 3 March 2007

N-doped TiO2 (anatase) with high visible light photocatalytic activity was prepared by treating nanotube titanic acid (NTA) in NH3 flowat different temperatures. The crystalline structure of N-doped TiO2 determined by XRD was anatase when the treating temperature was higher than 400 ℃, however, a newphase (TiN) emerged at 700 ℃. The UV-Vis diffuse reflectance spectra (DRS) display that N-doped TiO2 has a continuous absorption at λ=400 nm. The photocatalytic activity of the N-doped TiO2 was determined by the photocatalytic oxidation of propylene under visible light irradiation. The highest photocatalytic activity was obtained for the catalyst treated at 600 ℃ in NH3 flow, which was active even under λ=500 nm, its kinetic behavior was accordant with the first order reaction formula.
- Nanotube titanic acid; Dioxide titanium; Nitrogen doped; Visible light photocatalysis
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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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Kinetic Behavior of Visible Light Photocatalytic Oxidation of Propylene for N-Doped Nano-TiO2

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通讯作者: 陈斌, bchen63@163.com

Kinetic Behavior of Visible Light Photocatalytic Oxidation of Propylene for N-Doped Nano-TiO₂