| 正丁胺对Tio2／Sio2气凝胶光催化活性的影响 |
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| 引用本文： | 许新华,宋伟强,徐叶平,张玉龙. 正丁胺对Tio2／Sio2气凝胶光催化活性的影响[J]. 同济大学学报(自然科学版), 2000, 28(5) |
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| 作者姓名： | 许新华 宋伟强 徐叶平 张玉龙 |
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| 作者单位： | 同济大学 化学系，上海 200092 |
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| 基金项目： | 国家自然科学基金!资助项目 ( 2 970 30 0 4 ) |
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| 摘 要： | 用溶胶 -凝胶法、超临界干燥技术合成了不同组成的TiO2 /SiO2 气凝胶材料 ,通过模板剂正丁胺调变其孔结构和孔分布 ,利用N2 吸附法、X -射线衍射法和激光拉曼光谱表征了气凝胶的比表面积、孔分布、晶相结构以及TiO2 的分散状态 .用流动法考察了在TiO2 /SiO2 气凝胶上CO光催化氧化反应的活性 ,并讨论了结构调变对提高催化活性的影响 .
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| 关 键 词： | 正丁胺 气凝胶 结构调变 光催化 |
Influences on Photo- catalytic Activity of TiO2/SiO2 Aerogels by n- butylamine Template |
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| XU Xin-hua,SONG Wei-qiang,XU Ye-ping,ZHANG Yu-long. Influences on Photo- catalytic Activity of TiO2/SiO2 Aerogels by n- butylamine Template[J]. Journal of Tongji University(Natural Science), 2000, 28(5) |
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| Authors: | XU Xin-hua SONG Wei-qiang XU Ye-ping ZHANG Yu-long |
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| Abstract: | A series of TiO 2/SiO 2 aerogels were synthesized by sol-gel method followed by supercritical drying process. n -butylamine was used as template to control the pore structure of aerogels. The characteristics of the samples were investigated by means of XRD, BET method and Raman spectroscopy. The aerogels prepared with n -butylamine template had the ordered meso-porous structure and amorphous form of TiO 2, on which high conversion of photo-catalytic oxidation of CO was obtained. |
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| Keywords: | n -butylamine aerogel structure control photo-catalysis |
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