| Gd3+掺杂纳米TiO2的制备及性能 |
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| 引用本文： | 李凤丽,彭绍琴,李越湘.Gd3+掺杂纳米TiO2的制备及性能[J].有色金属(冶炼部分),2007(3):41-42,49. |
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| 作者姓名： | 李凤丽 彭绍琴 李越湘 |
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| 作者单位： | 南昌大学化学系,江西,南昌,330047 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);江西省教育厅科研项目;南昌大学校科研和教改项目 |
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| 摘 要： | 采用溶胶-凝胶浸渍法制备了纯的和Gd3+掺杂的纳米TiO2,并利用XRD、UV-Vis漫反射光谱对样品进行了表征。考察了Gd3+掺杂对TiO2催化活性的影响。结果发现Gd3+的掺入阻止了TiO2由锐钛矿相向金红石相的转变,抑制了晶粒的生长。与纯TiO2相比,Gd3+掺杂的TiO2在紫外区的光吸收能力增强,TiO2催化剂光催化分解水制氢活性提高了56%。
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| 关 键 词： | 二氧化钛 光催化 Gd 掺杂 氢 |
| 文章编号： | 1007-7545（2007）03-0041-03 |
The Preparation and Performance of Nanoparticle Gd3+-doped TiO2 |
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| LI Feng-li,PENG Shao-qing,LI Yue-xiang.The Preparation and Performance of Nanoparticle Gd3+-doped TiO2[J].Nonferrous Metals(Extractive Metallurgy),2007(3):41-42,49. |
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| Authors: | LI Feng-li PENG Shao-qing LI Yue-xiang |
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| Affiliation: | Department of Chemistry, Nanehang University, Nanehang 330047,China |
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| Abstract: | Pure and Gd3+-doped TiO2 nanoparticle photocatalysts were prepared by sol-gel impregnation process,and characterized by means of X-ray diffraction and UV-Vis diffuse reflectance spectra.The effects of Gd3+ doping on the photocalytic activity of TiO2 were investigated.The results show that the transformation from anatase to rutile and the grain growth of TiO2 was prevented by doping Gd3+.The absorption intensity in the region of ultraviolet light of Gd3+-doped TiO2 were promoted compared with pure TiO2.The activity of hydrogen generation from water 56% was increased. |
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| Keywords: | Gd |
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