| 油酸修饰纳米TiO_2粉体的制备及其光催化活性 |
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| 引用本文： | 陈友存.油酸修饰纳米TiO_2粉体的制备及其光催化活性[J].安庆师范学院学报(自然科学版),2004,10(4):1-3. |
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| 作者姓名： | 陈友存 |
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| 作者单位： | 安庆师范学院,化学系,安徽,安庆,246011 |
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| 基金项目： | 安徽省教育厅自然科学基金 |
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| 摘 要： | 以钛酸四丁酯为前驱体,利用溶剂热技术制备了经油酸修饰的纳米TiO2粉体。以X射线衍射(XRD)、透射电镜(TEM)、红外光谱(FTIR)等测试技术对产物进行了表征,并对其光催化降解邻硝基苯酚的性能进行了分析。实验结果表明:粉体为球形放射状颗粒,平均粒径约为920nm,其中含有晶粒尺寸约为4.7nm的细粒,比表面积高达180m2/g,与无油酸修饰的纳米TiO2相比,表现出很高的光催化活性。
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| 关 键 词： | 二氧化钛 邻硝基苯酚 光催化 钛酸四丁酯 |
| 文章编号： | 1007-4260(2004)04-0001-03 |
| 修稿时间： | 2004年5月25日 |
Preparation and Photocatalytic Properties of TiO2 Nanopodwers by Oleic Acid Modification |
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| CHEN,You-cun.Preparation and Photocatalytic Properties of TiO2 Nanopodwers by Oleic Acid Modification[J].Journal of Anqing Teachers College(Natural Science Edition),2004,10(4):1-3. |
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| Authors: | CHEN You-cun |
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| Abstract: | TiO_2 nanopodwers were prepared with titanium tetrabutyloxide as the precursor by a solvothermal process. The prepared products were characterized by X-ray diffraction (XRD) and transmission electron microscope (TEM). The photocatalytic properties of the prepared samples were evaluated by measuring the degradation of o-nitrophenol. Transmission electron microscope (TEM) showed the prepared product contains sphere particles with a size of 920nm. HR TEM image further reveals that the sphere particles display the fine structure consisting of 4.5 nm ultrafine particles. This structure tends to have a high specific surface area and shows high photocatalytic properties, compared with TiO_2 nanopodwers of no oleic acid modification. |
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| Keywords: | titanium o-nitrophenol photocatalytic degradation titanium tetrabutyloxide |
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