| Effect of substrate temperature on structural properties and photocatalytic activity of TiO2 thin films |
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| 引用本文： | 赵磊 连建设. Effect of substrate temperature on structural properties and photocatalytic activity of TiO2 thin films[J]. 中国有色金属学会会刊, 2007, 17(4): 772-776. DOI: 10.1016/S1003-6326(07)60172-1 |
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| 作者姓名： | 赵磊 连建设 |
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| 作者单位： | Key Lab of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130025, China |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | Titanium dioxide （TiO2） films with anatase structure were prepared on quartz glass substrates by pulse laser ablating titanium （99.99%） target under oxygen pressure of 10 Pa at substrate temperature of 500-800 ℃. The structural properties of the films were characterized by X-ray difffactometry（XRD）, X-ray photoelectron spectroscopy（XPS） and field emission scan electron microscopy（FESEM）. The results show that, as the substrate temperature is increased from 600 ℃ to 800 ℃, the anatase structure of the films changes from random growth to （211）-oriented growth. The absorption edge tested by UV-Vis Spectrometer has a blue shift. The photocatalytic activity of the films was tested on the degradation of methyl orange. It is found that the film with random growth structure exhibits better photo-degradation efficiency than that with （211）-oriented growth structure.
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| 关 键 词： | 二氧化钛薄膜 脉冲激光沉积 光催化活性 薄膜结构 |
| 收稿时间： | 2006-04-17 |
| 修稿时间： | 2006-01-172007-04-15 |
Effect of substrate temperature on structural properties and photocatalytic activity of TiO2 thin films |
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| ZHAO Lei,LIAN Jian-she. Effect of substrate temperature on structural properties and photocatalytic activity of TiO2 thin films[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(4): 772-776. DOI: 10.1016/S1003-6326(07)60172-1 |
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| Authors: | ZHAO Lei LIAN Jian-she |
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| Affiliation: | Key Lab of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130025, China |
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| Abstract: | Titanium dioxide (TiO2) films with anatase structure were prepared on quartz glass substrates by pulse laser ablating titanium (99.99%) target under oxygen pressure of 10 Pa at substrate temperature of 500–800 °C. The structural properties of the films were characterized by X-ray diffractometry(XRD), X-ray photoelectron spectroscopy(XPS) and field emission scan electron microscopy(FESEM). The results show that, as the substrate temperature is increased from 600 °C to 800 °C, the anatase structure of the films changes from random growth to (211)-oriented growth. The absorption edge tested by UV-Vis Spectrometer has a blue shift. The photocatalytic activity of the films was tested on the degradation of methyl orange. It is found that the film with random growth structure exhibits better photo-degradation efficiency than that with (211)-oriented growth structure. |
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| Keywords: | TiO2 thin film pulsed laser deposition photocatalytic activity orientation |
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