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Volume 30 Issue 11
Aug.  2021
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Article Contents
TANG Jianjun, ZOU Yuan, ZHANG Wei, XIE Weiping, ZHOU Kanggen. Oxidative power of N/TiO2 photocatalysis under visible illumination[J]. Chinese Journal of Engineering, 2008, 30(11): 1286-1289,1295. doi: 10.13374/j.issn1001-053x.2008.11.006
Citation: TANG Jianjun, ZOU Yuan, ZHANG Wei, XIE Weiping, ZHOU Kanggen. Oxidative power of N/TiO2 photocatalysis under visible illumination[J]. Chinese Journal of Engineering, 2008, 30(11): 1286-1289,1295. doi: 10.13374/j.issn1001-053x.2008.11.006

Oxidative power of N/TiO2 photocatalysis under visible illumination

doi: 10.13374/j.issn1001-053x.2008.11.006
  • Received Date: 2007-09-03
  • Rev Recd Date: 2007-10-17
  • Available Online: 2021-08-06
  • N-doped TiO2 photocatalyst was prepared by calcination of hydrated titanium dioxide in ambient atmosphere at 600℃ for 2 h, which was obtained by using saturated urea solutions as precipitant. The photocatalytic properties of the obtained yellow sampies were studied using reactive brilliant red X-3B, 2, 4-dichlorophenol and CH3COO- as model pollutants. XPS results indicated that nitrogen was doped into TiO2 lattice in the form of Ti-N chemical bond. UV-Vis results showed that the sample could absorb the visible light wavelength above 400 nm. Photocatalytic results revealed that X-3B and 2, 4-dichlorophenol could be degraded by N/TiO2 photocatalysis when using a fluorescent lamp of 420 nm in main wavelength as the light source, while CH3COO- could not be degraded, however, CH3COO- could be degraded by N/TiO2 photocatalysis under UV irradiation. The wavelength of excitation illumination has great influence on the oxidative power of N/TiO2 photocatalysis.

     

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