Preparation of Non-Grinding Long Afterglow SrAl2O4:Eu2+, Dy3+ Material by Microwave Combustion Method
来源期刊：JOURNAL OF RARE EARTHS2007年第1期
论文作者：Du Haiyan Sun Jiayue Li Gengshen
Key words：microwave combustion; non-grinding; long afterglow; SrAl2O4:Eu2+,Dy3+; rare earths;
Abstract: The non-grinding long afterglow material SrAl2O4:Eu2+, 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.
Du Haiyan1，Sun Jiayue1，Li Gengshen1
(1.College of Chemical and Environmental Engineering, Beijing Technology and Business University, Beijing 100037, China)
Abstract:The non-grinding long afterglow material SrAl2O4:Eu2+, 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.
Key words:microwave combustion; non-grinding; long afterglow; SrAl2O4:Eu2+,Dy3+; rare earths;
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