| Study on the energy transfer between UO_2~(2 ) and Eu~(3 ) in sol-gel derived titania matrix by luminescence spectroscopy |
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| 作者姓名： | 符连社 张洪杰 王淑彬 孟庆国 杨魁跃 倪嘉缵 |
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| 作者单位： | Laboratory of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun，Jilin 130022，China，Laboratory of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun，Jilin 130022，China，Laboratory of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun，Jilin 130022，China，Laboratory of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun，Jilin 130022，China，Laboratory of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun，Jilin 130022，China，Laboratory of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun，Jilin 130022，China |
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| 基金项目： | Project supported by the National Key for Fundamental Research, the National Natural Science Key Foundation of China (No. 29731010) and the Noble Youth Fund of Natural Science (No. 29225102) |
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| 摘 要： | The TiO2 gel doped with UO22 and Eu3 has been prepared by a sol-gel method. The quenching of the UO22 emission by Eu3 and the energy transfer from the excited state of UO22 to the ground state of Eu3 have been investigated. The energy transfer has been studied by the measurement of luminescence lifetime τ, calculations of energy transfer efficiency ηET and energy transfer rate WET. The experimental results indicated that the quenching is combined static and dynamic mechanism, but the static mechanism is dominant.
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Study on the energy transfer between UO_2~(2 ) and Eu~(3 ) in sol-gel derived titania matrix by luminescence spectroscopy |
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| FU,Lian-She ZHANG,Hong-Jie WANG,Shu-BinMENG,Qing-Guo YANG,Kui-Yue NI,Jia-ZuanLaboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin ,China.Study on the energy transfer between UO_2~(2 ) and Eu~(3 ) in sol-gel derived titania matrix by luminescence spectroscopy[J].Chinese Journal of Chemistry,1999,17(2):132-136. |
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| Authors: | FU Lian-She ZHANG Hong-Jie WANG Shu-BinMENG Qing-Guo YANG Kui-Yue NI Jia-ZuanLaboratory of Rare Earth Chemistry and Physics Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin China |
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| Institution: | FU,Lian-She ZHANG,Hong-Jie WANG,Shu-BinMENG,Qing-Guo YANG,Kui-Yue NI,Jia-ZuanLaboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,China |
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| Abstract: | The TiO2 gel doped with UO2+2 and Eu3+ has been prepared by a sol-gel method. The quenching of the UO2+2 emission by Eu3 + and the energy transfer from the excited state of UO2+2 to the ground state of Eu3+ have been investigated. The energy transfer has been studied by the measurement of luminescence lifetime τ, calculation of energy transfer efficiency WET and energy transfer rate ηET. The experimental results indicated that the quenching is combined static and dynamic mechanism, but the static mechanism is dominant. |
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| Keywords: | Sol-gel method energy transfer titania uranyl ion europium |
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