Photocatalytic Degradation of NO_x Under Visible Light Irradiation Using Fe Doped Titanium Dioxide

化学工业与工程

Chemcial Industry and Engineering

2008, Vol. 25

Issue (5) :399-403 DOI:

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Photocatalytic Degradation of NO_x Under Visible Light Irradiation Using Fe Doped Titanium Dioxide

ZHOU Lin~(1),TAN Xin~2,ZHAO Lin~2,LIU Shi-xin~1(1.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2.School of Environment Science and Technology,Tianjin University,Tianjin 300072,China)

(1),TAN Xin~2,ZHAO Lin~2,LIU Shi-xin~1(1.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2.School of Environment Science and Technology,Tianjin University,Tianjin 300072,China

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Abstract In order to utilize visible light in photocatalytic conversion of NO_x, Fe atoms were doped in commercially available photocatalytic TiO_2 powders by impregnating method.The crystal phase of TiO_2 was not changed after calcinations process.Analysis by both X-ray diffraction(XRD) and X-ray photoelectron spectroscopy(XPS) indicated that Fe atoms were incorporated in TiO_2 as Ti��O��Fe linkages.A significant shift of the absorption edge to a lower energy and a higher absorption in the visible light region were observed.These Fe-doped TiO_2 powders exhibited photocatalytic activity for the degradation of NO_x under visible light irradiation.The sample mixed with 0.2% Fe~(3+) and calcined at 600 �� for 1.0 h showed the best photocatalytic activity.

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Received 2008-09-15; published 2008-09-15

Cite this article:

ZHOU Lin~.Photocatalytic Degradation of NO_x Under Visible Light Irradiation Using Fe Doped Titanium Dioxide[J] Chemcial Industry and Engineering, 2008,V25(5): 399-403

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