| 纳米TiO2薄膜的制备及光催化活性研究 |
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| 引用本文： | 肖循,唐超群,陈琦丽. 纳米TiO2薄膜的制备及光催化活性研究[J]. 华中科技大学学报(自然科学版), 2004, 32(8): 22-24 |
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| 作者姓名： | 肖循 唐超群 陈琦丽 |
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| 作者单位： | 华中科技大学,物理系,湖北,武汉,430074 |
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| 基金项目： | 湖北省教育厅科研基金资助项目(2002A04006). |
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| 摘 要： | 用溶胶一凝胶法在玻璃基片上制备了均匀透明的Ti02薄膜，并以苯酚的降解反应为模型，研究了纳米Ti02薄膜的光催化活性．结果表明薄膜晶粒大小为23．0nrn，呈锐钛矿型，沿(101)晶面具有择优取向性；10h内苯酚的降解率为66％，苯酚光催化降解反应符合一级动力学规律．
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| 关 键 词： | 纳米Ti02薄膜 光催化活性 降解 溶胶一凝胶工艺 |
| 文章编号： | 1671-4512(2004)08-0022-03 |
| 修稿时间： | 2003-10-20 |
Preparation of Nanocrystalline TiO2 thin films and its photocatalytic activity |
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| Xiao Xun Doctoral Candidate, Dept. of Physics,Huazhong Univ. of Sci. , Tech.,Wuhan ,China. Tang Chaoqun Chen Qili. Preparation of Nanocrystalline TiO2 thin films and its photocatalytic activity[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2004, 32(8): 22-24 |
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| Authors: | Xiao Xun Doctoral Candidate Dept. of Physics Huazhong Univ. of Sci. & Tech. Wuhan China. Tang Chaoqun Chen Qili |
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| Affiliation: | Xiao Xun Doctoral Candidate, Dept. of Physics,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. Tang Chaoqun Chen Qili |
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| Abstract: | The uniform transparent anatase TiO 2 thin films composed by the crystallite size of 23.0?nm on the soda lime glass substrates and present oriented along (101) crystal plane were prepared by Sol Gel processing. The photocatalytic oxidation of phenol in water was used as a model reaction to evaluate the activity of TiO 2 films catalysis. The results demonstrated that phenol was degraded by 66?% after ten hours and phenol photodegradation reaction was in accordance with first order kinetic model. |
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| Keywords: | Nanocrystalline TiO 2 thin film photocatalytic activity degradation Sol Gel processing |
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