沸石中组装SrAl2O4:Eu2+,Dy3+的可调发光现象

首先用溶胶-凝胶法制备符合SrAl2O4：Eu^2 ，Dy^3 化学组成的溶胶，然后通过机械研磨、水热反应和微波加热反应三种不同的组装方法和微波还原扩散法使其进入主体ZSM-5沸石的孔道中。主客体材料的荧光光谱出现显著蓝移，余辉光谱出现400nm和517nm两个发射峰，两个余辉峰的相对发射强度随组装方法和组装浓度的改变而具有可调性，呈现有规律的变化。分析其原因是由于发光材料进入沸石的纳米级孔洞引起的。

The Adjustable Luminescence of SrAl2O4:Eu2+,Dy3+ Assmembled in Zeolite

Stoichiometric SrAl 2O 4:Eu 2+ ,Dy 3+ sol guest was prepared by sol-gel method and assembled into the zeolite ZSM-5 host through mechanical mixing,hydrothermal reaction and microwave heating reaction.The fluorescence spectra of the reduced host-gust materials exhibit distinct blue-shift of the emission band of SrAl 2O 4:Eu 2+ ,Dy 3+ .Some interesting phenomena are that the after-glow emission spectra exist two bands at about 400nm and 517nm and the relative strengths of these two bands can be adjusted by the variation of the assembly methods and the assembly concentration,and it demonstrates certain changing regularity.These are attributed to the fact that the phosphor was capsulated into the voids of zeolite ZSM-5.