| 纳米二氧化钛光催化性能研究 |
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| 引用本文： | 陈怡,潘晓燕,马学鸣,朱丽慧.纳米二氧化钛光催化性能研究[J].上海大学学报(英文版),2002,6(3):240-243. |
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| 作者姓名： | 陈怡 潘晓燕 马学鸣 朱丽慧 |
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| 作者单位： | [1]ResearchCenterofNano－ScienceandNano_Technology,ShanghaiUniversity,Shanghai200072,China [2]SchoolofMaterialsScienceandEngineering,ShanghaiUniversity,Shanghai200072,China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationof China (5 0 0 710 2 9and 5 0 10 10 0 4) |
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| 摘 要： | Nano-TiO2 powders with pure anatase sturcture were prepared by the method of precipitation-solution-gelation,using H2TiO3,hydrogen peroxide and ammonia as reactants.Active red X-3B dye solution was selected as a model pollutant for the photocatalysis degradation experiments,The effects of grain sizes,dosage and microostructure of nano-TiO2 on itsphotocatalysis properties were studied.The results show that photo-activity of the nano-TiO2 is enhanced with the grain sizes reducing or dosages increasing of nano-TiO2,Howerver,excess increase in nano-TiO2 concentration is not advantageous to the enhancement of the photo-activity.Anatase TiO2 demonstrated a higher photo-activity than rutile TiO2,The dye solution hardly degraded without nano-TiO2 powders being added into it or under sunlight irradiation.
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| 关 键 词： | 氧化钛 纳米结晶 光催化作用 |
| 收稿时间： | 4 December 2001 |
Study on photocatalysis properties of nanocrystalline titanium dioxide |
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| Yi Chen,Xiao-Yan Pan,Xue-Ming Ma Ph. D.,Li-Hui Zhu.Study on photocatalysis properties of nanocrystalline titanium dioxide[J].Journal of Shanghai University(English Edition),2002,6(3):240-243. |
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| Authors: | Yi Chen Xiao-Yan Pan Xue-Ming Ma Ph D Li-Hui Zhu |
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| Institution: | 1. Research Center of Nano-Science and Nano-Technology, Shanghai University, Shanghai 200072, China
2. School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China |
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| Abstract: | Nano TiO 2 powders with pure anatase structure were prepared by the method of precipitation solution gelation, using H 2TiO 3, hydrogen peroxide and ammonia as reactants. Active red X 3B dye solution was selected as a model pollutant for the photocatalysis degradation experiments. The effects of grain sizes, dosage and microstructure of nano TiO 2 on its photocatalysis properties were studied. The results show that photo activity of the nano TiO 2 is enhanced with the grain sizes reducing or dosages increasing of nano TiO 2. However, excess increase in nano TiO 2 concentration is not advantageous to the enhancement of the photo activity. Anatase TiO 2 demonstrated a higher photo activity than rutile TiO 2. The dye solution hardly degraded without nano TiO 2 powders being added into it or under sunlight irradiation. |
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| Keywords: | nanocrystalline TiO 2 photocatalysis property |
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