| La+掺杂纳米TiO2薄膜的制备及降解烟雾性能研究 |
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| 引用本文： | 李书耘,李风翠,伍海波,李慧芳,徐海. La+掺杂纳米TiO2薄膜的制备及降解烟雾性能研究[J]. 广州化工, 2012, 40(13): 75-76 |
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| 作者姓名： | 李书耘 李风翠 伍海波 李慧芳 徐海 |
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| 作者单位： | 中南大学化学化工学院,湖南长沙410083 有色金属资源化学教育部重点实验室,湖南长沙410083 |
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| 摘 要： | 以钛酸丁酯为原料采用溶胶凝胶法制备了金属镧离子掺杂的纳米二氧化钛溶胶通过拉提-浸渍的方法将其负载到载玻片上,并利用X射线衍射(XRD)和扫描电子显微镜(SEM)对薄膜进行表征。研究了镀膜层数,焙烧温度对薄膜的晶型、表面形貌及吸附降解香烟烟雾性能的影响。结果表明,经过500℃热处理后的适量掺杂镧离子的二氧化钛主要以锐钛矿晶型存在,在紫外光照射下对香烟烟雾有很好的吸附降解作用。
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| 关 键 词： | 溶胶-凝胶法 纳米二氧化钛 镧掺杂 降解 |
Preparation of Lanthanum- Doped Nano- titania Porous Films and Research on Degeradation of the Cigarette Smoke |
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| LI Shu - yun,LI Feng - cui,WU Hai - bo,LI Hui -fang,XU Hai. Preparation of Lanthanum- Doped Nano- titania Porous Films and Research on Degeradation of the Cigarette Smoke[J]. GuangZhou Chemical Industry and Technology, 2012, 40(13): 75-76 |
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| Authors: | LI Shu - yun LI Feng - cui WU Hai - bo LI Hui -fang XU Hai |
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| Affiliation: | 1 College of Chemistry and Chemical Engineering, Central South University, Hunan Changsha 410083; 2 Key Laborratory of Resource Chemistory of Nonferrous Metrals, Ministory of Eduecation, Hunan Changsha 410083, China) |
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| Abstract: | Nanometer lanthanum doped was prepared by sol - gel dip - coating process on the glass substrates. The crystal films were characterized by XRD and SEM. Some factors that influenced the quality and activity of lanthanum - doped nano - titania porous films, such as temperature, layers number of TiO2 were discussed. The results showed that the optimal heat treatment temperature was about 500℃. The number of TiO2 deposition on glass was 3. |
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| Keywords: | sol- gel method titanium thin film lanthanum doped degeradation |
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