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| INFLUENCES OF PREPARATION PARAMETERS ON MORPHOLOGY AND PHOTOLUMINESCENCE PROPERTY OF BaZrO3:Ce NANO-POWDERS |
| LI Yuling1), MA Weimin1), WEN Lei2), WEN Qiang1), YUAN Xiaoyu3) |
1) Liaoning Province Key Laboratory for Rare-Earth Chemistry and Applying, College of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang 110142
2) Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016
3) College of Mechanical Engineering, Shenyang University, Shenyang 110044 |
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Cite this article:
LI Yuling MA Weimin WEN Lei WEN Qiang YUAN Xiaoyu. INFLUENCES OF PREPARATION PARAMETERS ON MORPHOLOGY AND PHOTOLUMINESCENCE PROPERTY OF BaZrO3:Ce NANO-POWDERS. Acta Metall Sin, 2011, 47(1): 95-101.
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Abstract BaZrO3: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 BaZrO3:Ce nano-materials calcined at 1000℃ for 3 h has the best luminescence property, especially the samples doped 0.7%Ce3+ (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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Received: 06 August 2010
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| Fund: Supported by Key Laboratory Project from Office of Education of Liaoning Province (No.20008S181), Science & Technology Program of Liaoning Province (No.2008224001) and Science & Technology Program of Shenyang (No.1081236-1-00) |
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