| Photocatalytic Degradation of NOx Under Visible Light Irradiation Using Fe-Doped Titanium Dioxide |
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| 作者姓名： | 谭欣 周林 于涛 杨瑞东 赵林 |
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| 作者单位： | School of Environmental Science and Technology Tianjin University，School of Chemical Engineering and Technology Tianjin University，School of Environmental Science and Technology Tianjin University，School of Chemical Engineering and Technology Tianjin University，School of Environmental Science and Technology Tianjin University，Tianjin 300072 China，Tianjin 300072 China，Tianjin 300072 China，Tianjin 300072 China，Tianjin 300072 China |
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| 摘 要： | As industrial pollutants , NOx( mainly nitric oxide(NO) and nitric dioxide (NO2)) are generated mainlyfromcombustion and cause a series of environmental problems ,such as acidrain,photochemical smog,and greenhouse ef-fects. Either indoor or outdoor concen…
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| 关 键 词： | 降解作用 二氧化钛 光催化 氧化氮 |
| 修稿时间： | 2007-03-13 |
Photocatalytic Degradation of Nox Under Visible Light Irradiation Using Fe-Doped Titanium Dioxide |
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| TAN Xin,ZHOU Lin,YU Tao,YANG Ruidong,ZHAO Lin.Photocatalytic Degradation of NOx Under Visible Light Irradiation Using Fe-Doped Titanium Dioxide[J].Transactions of Tianjin University,2007,13(4):270-275. |
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| Authors: | TAN Xin ZHOU Lin YU Tao YANG Ruidong ZHAO Lin |
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| Institution: | 1. School of Environmental Science and Technology, Tianjin University,Tianjin 300072, China
2. School of Chemical Engineering and Technology,Tianjin Uviversity,Tianjin 30007, China |
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| Abstract: | In order to utilize visible light in photocatalytic conversion of NOx, Fe atoms were doped in commercially available photocatalytic TiO2 powders by impregnating method.The crystal phase of TiO2 was not changed after calcination process. Analysis by both X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) indicated that Fe atoms were incorporated in TiO2 as Ti-O-Fe linkages. One significant shift of the absorption edge to a Iower energy and a higher absorption in the visible light region were observed. The Fe-doped TiO2 powder exhibited photocatalytic activity for the degradation of NOx under visible light irradiation. The sample mixed with 0.2 at% Fe3+ and calcined at 600 ℃ showed the best photocatalytic activity. |
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| Keywords: | photocatalysis Fe-doped titania visible light induced nitrogen oxides |
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