| Preparation of Non-Grinding Long Afterglow SrAl2O4 ：Eu^2＋ , Dy^3＋ Material by Microwave Combustion Method |
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| 引用本文： | 杜海燕,李庚申,孙家跃.Preparation of Non-Grinding Long Afterglow SrAl2O4 ：Eu^2＋ , Dy^3＋ Material by Microwave Combustion Method[J].中国稀土学报(英文版),2007,25(1):19-22. |
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| 作者姓名： | 杜海燕 李庚申 孙家跃 |
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| 作者单位： | College of Chemical and Environmental Engineering, Beifing Technology and Business University, Beijing100037, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （20476002） |
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| 摘 要： | The non-grinding long afterglow material SrAl2O4：Eu^2＋ , Dy^3＋ was prepared by combustion method in home mierowave oven direetly, after dispersant, frother, eomburent, and mineralizer were added into the reacting system. XRD analysis showed that the powders were nearly pure SrAl2O4 phase with few other phases, and the size of the grain was 41.1 nm. Fluoreseenee speetrum results indieated that there were 2 exeitation peaks loeated at 345 and 400 nm, and the emission peak loeated at 516 nm, afterglow lasted up to 30 min or more. The mierowave eombustion method has advantages of less time, low temperature and no grinding process, and the material made by the method has good luminescent property.
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| 关 键 词： | 稀土元素 微波燃烧法 长余辉材料 制备 铝酸锶 铕 镝 |
| 文章编号： | 1002-0721（2007）01-0019-04 |
| 收稿时间： | 8 January 2006 |
| 修稿时间： | 2006-01-082006-09-10 |
Preparation of Non-Grinding Long Afterglow SrAl2O4: Eu, Dy Material by Microwave Combustion Method |
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| Du , Li Gengshen,Sun Jiayue,.Preparation of Non-Grinding Long Afterglow SrAl2O4: Eu, Dy Material by Microwave Combustion Method[J].Journal of Rare Earths,2007,25(1):19-22. |
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| Authors: | Du Li Gengshen Sun Jiayue |
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| Affiliation: | College of Chemical and Environmental Engineering, Beifing Technology and Business University, Beijing 100037, China |
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| Abstract: | The non-grinding long afterglow material SrAl2O4Eu2 , Dy3 was prepared by combustion method in home microwave oven directly, after dispersant, frother, comburent, and mineralizer were added into the reacting system. XRD analysis showed that the powders were nearly pure SrAl2O4 phase with few other phases, and the size of the grain was 41.1 nm. Fluorescence spectrum results indicated that there were 2 excitation peaks located at 345 and 400 nm, and the emission peak located at 516 nm, afterglow lasted up to 30 min or more. The microwave combustion method has advantages of less time, low temperature and no grinding process, and the material made by the method has good luminescent property. |
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| Keywords: | microwave combustion non-grinding long afterglow SrAl2O4:Eu2 Dy3 rare earths |
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