| PEG1000用量对多孔TiO_2薄膜结构及光催化性能的影响 |
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| 引用本文： | 张文杰,白佳威,曲彦亮,刘文彬.PEG1000用量对多孔TiO_2薄膜结构及光催化性能的影响[J].功能材料,2011(Z2). |
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| 作者姓名： | 张文杰 白佳威 曲彦亮 刘文彬 |
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| 作者单位： | 沈阳理工大学环境与化学工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(50774074); 国家重点基础研究发展计划(973计划)资助项目(2005CB121104) |
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| 摘 要： | 以钛酸四丁酯为钛源,PEG1000为模板剂,乙酰丙酮为稳定剂,制备了TiO2溶胶,通过浸渍-提拉法在载玻片上制备了多孔TiO2薄膜。采用X射线衍射、扫描电镜、紫外-可见透射光谱、X射线光电子能谱、N2吸附-脱附等对TiO2薄膜的晶相结构、表面形貌、化学组成及TiO2粉体的BET比表面积和孔径分布进行了表征。考察了TiO2薄膜对甲基橙的光催化降解活性。实验结果表明,TiO2薄膜催化剂的晶型为锐钛矿型,Ti以Ti4+形式存在。随着PEG1000添加量的增加,薄膜表面形貌变得粗糙,孔数量先增加而后下降;多孔TiO2薄膜在紫外区域内的吸收边沿向短波方向移动,薄膜透射率也发生波动,但薄膜的厚度基本不变。当PEG1000添加量为2.0g时,薄膜中存在大量的介孔,薄膜的比表面积最大,光催化性能最佳。
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| 关 键 词： | 多孔TiO2薄膜 溶胶-凝胶 PEG1000 甲基橙 光催化 |
Influence of PEG1000 amount on structure and photocatalytic activity of the porous TiO_2 film |
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| ZHANG Wen-jie,BAI Jia-wei,QU Yan-liang,LIU Wen-bin.Influence of PEG1000 amount on structure and photocatalytic activity of the porous TiO_2 film[J].Journal of Functional Materials,2011(Z2). |
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| Authors: | ZHANG Wen-jie BAI Jia-wei QU Yan-liang LIU Wen-bin |
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| Affiliation: | ZHANG Wen-jie,BAI Jia-wei,QU Yan-liang,LIU Wen-bin (School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang 110159,China) |
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| Abstract: | TiO2 sol was prepared by sol-gel technique using tetrabutyl titanate as precursor,PEG1000 as template,and acetyl acetone as stabilizer.The films were fabricated by dip-coating method on the glass slides.The crystalline structure,surface morphology,composition,transmittance,BET surface area and pore size distribution of the samples were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),X-ray photoelectron spectroscopy(XPS),UV-Vis spectrophotometer,and N2-adsorption and desorption.Phot... |
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| Keywords: | porous TiO2 film sol-gel PEG methyl orange photocatalysis |
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