| 掺锌的TiO2纳米粉的结构相变及发光性质 |
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| 引用本文： | 袁志好,张立德.掺锌的TiO2纳米粉的结构相变及发光性质[J].高等学校化学学报,1999,20(7):1007-1011. |
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| 作者姓名： | 袁志好 张立德 |
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| 作者单位： | 1. 中国科学院固体物理研究所, 合肥 230031;
2. 安徽农业大学应用化学系, 合肥 230036 |
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| 摘 要： | 采用溶胶-凝胶法制备了掺锌的TiO2纳米粉末,并用XRD、TEM、TG和DSC等技术考察了掺入的锌对TiO2的锐钛矿→金红石结构相变的影响.研究结果表明,锌的掺入可促进TiO2的结构相变,使相变温度显著降低.纳米态TiO2存在室温光致发光现象,在TiO2的纳米粉中掺入适量的锌,可显著增强体系的发光强度.
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| 关 键 词： | TiO2纳米粉 结构相变 锌掺杂物 光致发光 溶胶－凝胶法 |
| 收稿时间： | 1998-10-05 |
Structural Phase Transformation and Photoluminescence of Zn-doped TiO2 Nanopowders |
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| YUAN Zhi-Hao,ZHANG Li-De.Structural Phase Transformation and Photoluminescence of Zn-doped TiO2 Nanopowders[J].Chemical Research In Chinese Universities,1999,20(7):1007-1011. |
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| Authors: | YUAN Zhi-Hao ZHANG Li-De |
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| Institution: | 1. Institute of Solid State Physics, Chinese Academy of Sciences Hefei, 230031;
2. Department of Applied Chemistry, Anhui Agriculture University, Hefei, 230036 |
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| Abstract: | Zn doped titania nanopowders was prepared by sol gel method. Influence of the dopant on the anatase to rutile phase transformation of TiO 2 was investigated. It was found that the Zn dopant can effectively enhance the transformation by lowering the transition temperature. In addition, photoluminescence of gel derived TiO 2 nanopowders under 228 nm light excition can be observed at room temperature, and its relative luminescence intensity can be increased by doping Zn into the titania nanopowders. |
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| Keywords: | Titania nanopowders Structural phase transformation Zn additive Photoluminescence Sol gel method |
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