| Study on Modification of Nano-Sized Anatase Titanium Dioxide by Nitrogen-Plasma |
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| 作者姓名： | 刘长生 马志斌 李俊 王卫红 |
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| 作者单位： | Key Laboratory of Plasma Chemistry ＆ Advanced Materials of Hubei and School of Provincial Material Science ＆ Engineering, Wuhan Institute of Chemical Technology, Wuhan,430074, China |
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| 基金项目： | supported by National Natural Science Foundation of China （No.50343018）, National New Technology Plan （863） Project （2003AA302330）, and 3. Natural Science Foundation of Hubei Province （2002AC006） |
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| 摘 要： | The nano-sized particles of anatase titanium oxide （TiO2） were obtained by hydrolysis of titanium ester （TNB） in basic media and dehydrated in acid media. And then the anatase titanium oxide was treated with nitrogen plasma. The effect of nitrogen plasma treating time on the activity of photo-catalytic reduction of the Cr2O7^2- for sample obtained was investigated. The samples were characterized by X-ray diffraction （XRD）, X-ray photoelectron spectroscopy （XPS）, Transmission Electron Microscope （TEM） and Ultraviolet （UV）. A peak of 396 eV in the N 1 s XPS spectra of sample obtained with nitrogen plasma treated TiO2 showed that nitrogen-doped titanium oxide （TiO2-zNx） has been obtained. The spectra of UV showed that the light absorption of TiO2-xNz obtained by nitrogen plasma treated TiO2 for 10min. had moved to the visible region. The picture of TEM and spectra of XRD indicated that the crystallographic forms and particle dimension had no apparent change for both the modified and the unmodified TiO2. When the TiO2 sample was treated for 7 min with nitrogen plasma, it exhibited best photo-catalytic activity.
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| 关 键 词： | 氮等离子体 二氧化钛 修正 光接触反应 |
| 收稿时间： | 2005 |
| 修稿时间： | 2005 |
Study on Modification of Nano-Sized Anatase Titanium Dioxide by Nitrogen-Plasma |
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| LIU Changsheng, MA Zhibin, LI Jun, WANG Weihong.Study on Modification of Nano-Sized Anatase Titanium Dioxide by Nitrogen-Plasma[J].Plasma Science & Technology,2006,8(3):311-315. |
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| Authors: | LIU Changsheng MA Zhibin LI Jun WANG Weihong |
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| Abstract: | |
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| Keywords: | nitrogen plasma TiO2 modification photo-catalytic |
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