| Gd和TiO_2共掺杂的WO_3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,刘世同,李玉清.Gd和TiO_2共掺杂的WO_3纳米粉体的制备及其光催化性能[J].襄樊学院学报,2008,29(8). |
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| 作者姓名： | 刘华俊 刘世同 李玉清 |
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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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| 基金项目： | 湖北省教育厅科学技术研究项目
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| 摘 要： | 以Na2WO4和C16H33(CH3)3NBr为原料,通过液相沉淀法制备了WO3纳米粉体,用钛酸胶体溶液浸滞法制备了TiO2掺杂的WO3纳米粉体,再用Gd(NO3)3溶液浸滞TiO2掺杂的WO3纳米粉体法制备了稀土Gd和TiO2共掺杂的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,稀土Gd和TiO2共掺杂拓展了WO3的光响应范围,提高了对可溶性染料罗丹明B(RB)的吸附作用,使WO3对RB的光催化降解活性和光稳定性得到了显著提高.
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| 关 键 词： | 光催化降解 罗丹明B TiO2 WO3 Gd |
The Preparation of Gd and TiO2 Doping WO3 and Its Photocatalytic Activity |
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| LIU Hua-jun,LIU Shi-tong,LI Yu-qing.The Preparation of Gd and TiO2 Doping WO3 and Its Photocatalytic Activity[J].Journal of Xiangfan University,2008,29(8). |
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| Authors: | LIU Hua-jun LIU Shi-tong LI Yu-qing |
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| Institution: | LIU Hua-jun; LIU Shi-tong; LI Yu-qing(Department of Chemistry and 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 Gd and TiO2 Doping WO3 nanoparticles were synthesized by solvent impregnating method with the aqueous solution of Gd(NO3)3 and 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 Gd and TiO2 ... |
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| Keywords: | TiO2 WO3 Gd |
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