正交法优化纳米SrAl_2O_4:Eu^(2+),Dy_(3+)制备工艺  

Optimization of Preparation Technology of SrAl_2O_4:Eu^(2+),Dy_(3+) Nanoparticles by Orthogonal Design Method

作　　者：郝桂霞[1,2] 

机构地区：[1]广东工业大学轻工化工学院,广东广州510006 [2]韩山师范学院化学系,广东潮州521041

出　　处：《当代化工》2011年第5期451-453,共3页Contemporary Chemical Industry

摘　　要：采用溶胶-凝胶法合成了SrAl2O4∶Eu2+,Dy3+纳米长余辉发光材料,利用正交设计法优化了制备工艺。在传统溶胶-凝胶法基础上,添加了硼酸,在950℃生成单一晶相,该法能使SrAl2O4生成温度降低150℃,生成的磷光体发光强度高、余辉时间长,平均晶粒尺寸为25～90 nm。Long-lasting phosphorescence SrAl2O4：Eu2＋,Dy3＋ nanoparticles were synthesized through Sol-Gel method,and the preparation technology was optimized by orthogonal design.The results show that when boric acid is added to them on the basis of traditional Sol-Gel method,the single phase phosphor SrAl2O4 is formed at 950 ℃,the method can lower formation temperature of SrAl2O4 by 150 ℃,the luminescence intensity of phosphors is higher and the afterglow is longer,the particles size is about 25～90 nm

关 键 词：铝酸锶铕镝 溶胶-凝胶 长余辉发光 纳米粉体 

分 类 号：TQ422[化学工程]