Preparation of Nanocrystal Y2O3:Eu by the EDTA Complexing Sol-Gel Method

Abstract

Abstract: Nanocrystal Y₂O₃:Eu was synthesized by the EDTA complexing sol-gel method at lower temperature using metal nitrate and EDTA as raw materials, the synthesis
condition was optimized. The pyrolytic decomposition mechanism of the gel, formation process of Y₂O₃:Eu and the properties of the particles were investigated
by TG-DTA, XRD, FTIR, SEM, Fluorescence Spectrophotometer. The results show that nitrate ions accelerate the decomposition of the EDTA-gel, and fine, homogenous, pure
cubic phase Y₂O₃:Eu nanocrystal can be produced after the dry gel calcinated at 600℃ for 2h. The nanoparticles of the Y₂O₃:Eu are basically
spherical in shape, about 20nm and 70nm in size respectively at 600℃ and 1000℃.

Key words: EDTA, complex, sol-gel, Y₂O₃:Eu, nanocrystal

CLC Number:

O614

ZHAI Yong-Qing,YAO Zi-Hua,DING Shi-Wen,QIU Man-De,ZHANG Yi-Cao,AN Wei. Preparation of Nanocrystal Y₂O₃:Eu by the EDTA Complexing Sol-Gel Method[J]. Journal of Inorganic Materials.

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Preparation of Nanocrystal Y₂O₃:Eu by the EDTA Complexing Sol-Gel Method

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