| TiO2／WO3纳米粉体的制备及其光催化性能 |
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| 引用本文： | 刘华俊.TiO2／WO3纳米粉体的制备及其光催化性能[J].襄樊学院学报,2007,28(5):37-40. |
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| 作者姓名： | 刘华俊 |
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| 作者单位： | 襄樊学院,化学与生物科学系,湖北,襄樊,441053 |
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| 摘 要： | 以NazWO4和C12H25NH3·Cl作原料，通过液相沉淀法制备了WO3纳米粉体，再用钛酸胶体浸滞法制备了TiO2包覆的WO3纳米粉体，并采用透射电子显微镜、紫外-可见漫反射吸收光谱和X-射线衍射对其结构进行了表征．实验结果表明，TiO2包覆WO3的光响应范围扩大，吸附量增大，显著提高了WO3对可溶性染料罗丹明B的光催化降解活性和光稳定性．
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| 关 键 词： | 光催化降解 罗丹明B TIO2 WO3 |
| 文章编号： | 1009-2854（2007）05-0037-04 |
| 修稿时间： | 2007-03-26 |
Study on the preparation of TiO2/WO3 and Its Photocatalytic Activity |
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| LIU Hua-jun.Study on the preparation of TiO2/WO3 and Its Photocatalytic Activity[J].Journal of Xiangfan University,2007,28(5):37-40. |
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| Authors: | LIU Hua-jun |
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| Institution: | LIU Hua-jun (Department of Chemistry ＆ Biology Science, Xiangfan University, Xiangfan 441053, China) |
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| Abstract: | Columnar WO3 nanoparticles have been prepared from Na2WO4 and C12H25NH3.Cl via a liquid precipitation process,and TiO2-coated WO3 nanoparticles were synthesized by solvent impregnating method with TiO2 colloid.The obtained samples were characterized by X-ray diffraction,transmission electron microscopy,the UV-vis diffuse reflectance spectrum.Moreover,the samples were employed for degradation of Rhodamine B in aqueous suspension.The results showed that TiO2 coating enhanced the photocatalytic activity and photostability of WO3 for Rhodamine B degradation. |
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| Keywords: | TiO2 WO3 |
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