Sol-Gel Synthesis and Characterization of BaAl2O4 and Co: BaAl2O4 Nanoparticles
2010 ◽
Vol 148-149
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pp. 1067-1070
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Keyword(s):
Sol Gel
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In this paper, we prepared BaAl2O4 and Co:BaAl2O4 nanoparticles from aqueous solution of metal nitrates containing citric acid as a chelating agent by sol-gel method. The gel was heat-treated at temperatures ranging from 710°C to 1000°C. The heat-treated powders were characterized by X-ray diffraction analysis (XRD), infrared spectra (IR) and luminescence spectroscopy. From the results of the characterization, we find the prepared powders are pure nano-particles of BaAl2O4 after heat-treated at 900°C temperature. The emission spectra of Co: BaAl2O4 in the visible region indicates the existence of Co2+ in the tetrahedral sites of BaAl2O4 nano-crystal.
2019 ◽
Vol 8
(3)
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pp. 209
2000 ◽
Vol 104
(34)
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pp. 8101-8107
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2008 ◽
Vol 23
(8)
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pp. 2053-2060
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