| Preparation and characterization of nitrogen-doped titanium dioxides |
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| 摘 要： | A type of high visible-light active titanium oxinitride(TiO2-xNx) powder was prepared by a simple proc-ess:the calcination of the hydrated titanium dioxide at the atmosphere of ammonia-argon using a tu-bular electric furnace at high temperatures. The hydrated titanium dioxide was synthesized as the precursor of TiO2-xNx using titanic acid as raw material,which came from sulfate technique of produc-ing titanium white. The effects of temperature and reaction time on the nitrogen content,grain size and crystal structure were studied. The visible-light activity and photocatalysis capability of the powder were also investigated.
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| 收稿时间： | 25 October 2005 |
| 修稿时间： | 24 March 2006 |
Preparation and characterization of nitrogen-doped titanium dioxides |
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| Authors: | Zhu GuoPing Zhou KangGen |
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| Institution: | 1. Environmental Science Research & Design Institute of Zhejiang Province, Hangzhou 310007, China
2. Department of Environmental Engineering, School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | A type of high visible-light active titanium oxinitride(TiO2-xNx) powder was prepared by a simple proc-ess:the calcination of the hydrated titanium dioxide at the atmosphere of ammonia-argon using a tu-bular electric furnace at high temperatures. The hydrated titanium dioxide was synthesized as the precursor of TiO2-xNx using titanic acid as raw material,which came from sulfate technique of produc-ing titanium white. The effects of temperature and reaction time on the nitrogen content,grain size and crystal structure were studied. The visible-light activity and photocatalysis capability of the powder were also investigated. |
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| Keywords: | nitrogen-doped titanium dioxides visible-light activity photocatalysis titanium oxinitride |
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