Abstract
BaZrO_3:Ce nano-materials were synthesized by coprecipitation reaction under different conditions. XRD, SEM and TG-DTA were applied to analyze the changes of phase and characteristic of the powders during calcing process. The luminescence spectra of samples were analyzed by the fluorescence photometer. It is shown that BaZrO_3:Ce nano-materials calcined at 1000℃for 3 h has the best luminescence property, especially the samples doped 0.7%Ce~(3+) (molar fraction) is optimal, and its excited spectrum is at 247 nm and emitted spectrum is from 475 nm to 505 nm. The best liquid conditions are that the initial concentration of mother liquor is 0.04 mol/L, containing 2%—3% (mass fraction) of DBS, the titration rate is 2 mL/min and the temperature is 0℃. The as-prepared powders are of well dispersed property and small average size of 20 nm.
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