| 稀土离子掺杂改性TiO2光催化剂 |
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| 引用本文： | 燕宁宁,张莹,吴晶,柳清菊.稀土离子掺杂改性TiO2光催化剂[J].材料导报,2011,25(17):72-74,78. |
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| 作者姓名： | 燕宁宁 张莹 吴晶 柳清菊 |
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| 作者单位： | 云南大学云南省高校纳米材料与技术重点实验室,昆明,650091 |
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| 基金项目： | 国家自然科学基金(5086200951062017) |
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| 摘 要： | TiO2较宽的禁带宽度和低的量子转换效率限制了其实际的应用,对TiO2进行改性以克服上述两方面问题一直是光催化领域研究的重点。稀土元素因其独有的电子结构和光学性质,在离子掺杂改性TiO2研究中受到重点关注。主要介绍了稀土离子掺杂改性TiO2所形成杂质能级的位置对改善其光催化性能的作用机理;综述了稀土离子掺杂对TiO2的晶型、晶粒尺寸和光谱吸收的影响;最后提出了目前研究存在的问题及发展趋势。
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| 关 键 词： | 光催化活性 稀土离子掺杂 TiO2 |
Research Progress on TiO_2 Photocatalyst Doped with RE Ions |
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| YAN Ningning,ZHANG Ying,WU Jing,LIU Qingju.Research Progress on TiO_2 Photocatalyst Doped with RE Ions[J].Materials Review,2011,25(17):72-74,78. |
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| Authors: | YAN Ningning ZHANG Ying WU Jing LIU Qingju |
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| Affiliation: | YAN Ningning,ZHANG Ying,WU Jing,LIU Qingju(Yunnan Key Laboratory of Nanomaterials & Technology,Yunnan University,Kunming 650091) |
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| Abstract: | Titanium dioxide's applications are limited for its wide band gap and low light quantum efficiency,so it is necessary to modify TiO2 to overcome the two problems.RE ions doping is one of the most effective methods to modify TiO2 for its unique electronic structure and optical properties.The mechanism of the position with impurity formation energies caused by RE ions doping to improve the photocatalystic activity of TiO2 is introduced mainly.The influences of modification with RE ions to the structure,size o... |
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| Keywords: | photocatalystic activity RE ions doping titanium dioxide |
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