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This thesis focuses on how to prepare a good dispersion, high luminous intensity of the alkaline earth aluminate long afterglow luminescent material and the current instability of the alkaline earth aluminate water problems explored a series of related conditions , and were using X-ray powder diffraction (XRD) measurement sample structure , with a scanning electron microscope (SEM), transmission electron microscopy (TEM) analysis for the morphology and fluorescence spectroscopy (FL) study their spectral properties . Conclusions are as follows : 1. Use CrAB as surfactant , synthesized nano- rod structure MAl 2 O 4 : Eu 2 , Dy 3 (M = Sr, Ba) luminescence ; 2 . A series of exploration related conditions , for example, select a different surfactant (DTAB, SDS, SBS, without any surface active agent ), different hydrothermal time (4h, 6h, 12h, 16h, 24h , etc. ) , different water heating temperature , the type of calcination temperature , effective summarized , and in certain conditions can be obtained a better morphology rod MAl 2 O 4 : Eu 2 , Dy 3 (M = Sr, Ba) luminescence ; 3 . In the surface treatment including attempts to SiO 2 -coated , TiO 2 -coated , choose organic solvent TBP solvent ligand complex heat treatment and preparation of long afterglow luminescent material type , so that alkaline earth aluminate water resistance is improved to some extent , achieved some results of this work a number of conditions are still groping in progress. After two years of efforts, our research projects carried out a series of exploration -related conditions , and has made some interesting results for future work laid the initial foundation.
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