| 三乙胺改性TiO_2光催化薄膜的制备与结构分析 |
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| 引用本文： | 丁新更,刘健翔,宁海水.三乙胺改性TiO_2光催化薄膜的制备与结构分析[J].稀有金属材料与工程,2010(Z2). |
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| 作者姓名： | 丁新更 刘健翔 宁海水 |
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| 作者单位： | 浙江大学; |
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| 基金项目： | 浙江省科技厅钱江人才项目(2008R10037)资助 |
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| 摘 要： | 采用溶胶-凝胶法,利用多水体系制备工艺制备了具有锐钛矿晶型的TiO2溶胶,通过三乙胺制备改性TiO2溶胶,最终制得具有可见光催化性能的TiO2复合薄膜。通过SEM、粒度分析、TEM等表征发现三乙胺的加入改变了TiO2晶粒尺寸和薄膜的结构。可见光催化实验表明:三乙胺与钛酸丁酯质量比为1:2时,薄膜光催化性能最优;利用UV-vis测试发现改性后的TiO2薄膜的吸收边有所红移,在可见光区具有较强的吸收。
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| 关 键 词： | 溶胶凝胶 掺杂 光催化 TiO2 |
Preparation and Structural Analysis of TiO_2 Photocatalytic Film Modified by Triethylamine |
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| Ding Xingeng,Liu Jianxiang,Ning Haishui.Preparation and Structural Analysis of TiO_2 Photocatalytic Film Modified by Triethylamine[J].Rare Metal Materials and Engineering,2010(Z2). |
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| Authors: | Ding Xingeng Liu Jianxiang Ning Haishui |
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| Affiliation: | Ding Xingeng,Liu Jianxiang,Ning Haishui (Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | By sol-gel method, anatase crystal type TiO2 sol was prepared using aqua-rich system firstly, then modified TiO2 sol was prepared by triethylamine, and finally visible light photocatalytic TiO2 thin poly-film was obtained. SEM, particle analysis and TEM revealed that doping of triethylamine changed the size of TiO2 crystalline particle and the film structure. UV-vis-NIR absorption spectroscopy indicates that, when the mass ratio of triethylamine to butyltitanate is 1:2, the absorption edge is red-shift with... |
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| Keywords: | sol-gel doping photocatalyst TiO2 |
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