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高等学校化学研究 ›› 2000, Vol. 16 ›› Issue (3): 203-207.

• Articles • 上一篇    下一篇

Photocatalytic Reaction of Sulfur Dioxide with Heptane in the Gas-phase Over Titanium Dioxide

DU Yao-guo, SHANG Jing, XU Zi-li   

  1. Department of Environmental Science and Engineering, Jilin University, Changchun 130023, P. R. China
  • 收稿日期:1999-09-18 出版日期:2000-08-24 发布日期:2011-10-22
  • 基金资助:

    Supported by the National Natural Science Foundation of China.

Photocatalytic Reaction of Sulfur Dioxide with Heptane in the Gas-phase Over Titanium Dioxide

DU Yao-guo, SHANG Jing, XU Zi-li   

  1. Department of Environmental Science and Engineering, Jilin University, Changchun 130023, P. R. China
  • Received:1999-09-18 Online:2000-08-24 Published:2011-10-22
  • Supported by:

    Supported by the National Natural Science Foundation of China.

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被引次数

2

摘要： The photocatalytic reaction of sulfur dioxide with heptane was carried out with the aid of UV-illuminated titanium dioxide ultrafine particles(UFP) at room temperature. The TiO2 UFPwas prepared by means of colloidal chemical method. The structure and the surface state of the as prepared TiO2 UFP via different heat-treatments were studied. As the calcining temperature decreased, the contents of hydroxyl on the surface increased, which could help to enhance the photocatalytic activity of the TiO2 UFP. The mechanism of the photocatalytic reaction of sulfur dioxide with heptane was proposed, in which there was a competition of photocatalytic oxidation between sulfur dioxide and heptane over the TiO2 UFP. It is inferred that the reactive oxygen species play an important role in the photocatalytic reaction of sulfur dioxide with heptane.

关键词: Sulfur dioxide, Heptane, Titanium dioxide photocatalysis, Reactive oxygen species

Abstract: The photocatalytic reaction of sulfur dioxide with heptane was carried out with the aid of UV-illuminated titanium dioxide ultrafine particles(UFP) at room temperature. The TiO2 UFPwas prepared by means of colloidal chemical method. The structure and the surface state of the as prepared TiO2 UFP via different heat-treatments were studied. As the calcining temperature decreased, the contents of hydroxyl on the surface increased, which could help to enhance the photocatalytic activity of the TiO2 UFP. The mechanism of the photocatalytic reaction of sulfur dioxide with heptane was proposed, in which there was a competition of photocatalytic oxidation between sulfur dioxide and heptane over the TiO2 UFP. It is inferred that the reactive oxygen species play an important role in the photocatalytic reaction of sulfur dioxide with heptane.

Key words: Sulfur dioxide, Heptane, Titanium dioxide photocatalysis, Reactive oxygen species