Synthesis of（Sr,Eu）CO3@SiO2 core-shell-like precursor for alkali earth silicate phosphors
来源期刊：Journal of Rare Earths2011年第10期
论文作者：胡运生 郝建华 庄卫东 黄小卫 何华强
文章页码：911 - 914
摘 要：Monodisperse（Sr,Eu）CO3 sphere（the homogenous mixture of Sr2+ and Eu3+ carbonates） was firstly prepared,and then its surfacewas coated by amorphous SiO2 in the presence of cationic surfactant cetyltrimethylammonium bromide（CTAB） to form（Sr,Eu）CO3@SiO2core-shell-like precursor.The overall synthesized mechanism was investigated and proposed based on the Fourier transform infrared spectroscopy（FTIR）,X-ray diffraction（XRD） and scanning electron microscopy（SEM）.This strategy could be applied to construct core-shellstructured precursors for the preparation of alkali earth silicate phosphors.
胡运生1，郝建华2，庄卫东1，黄小卫1，何华强1
1. National Engineering Research Center for Rare Earth Materials,General Research Institute for Nonferrous Metals,and Grirem Advanced Materials Co.,Ltd.2. Department of Applied Physics,The Hong Kong Polytechnic University
摘 要：Monodisperse（Sr,Eu）CO3 sphere（the homogenous mixture of Sr2+ and Eu3+ carbonates） was firstly prepared,and then its surfacewas coated by amorphous SiO2 in the presence of cationic surfactant cetyltrimethylammonium bromide（CTAB） to form（Sr,Eu）CO3@SiO2core-shell-like precursor.The overall synthesized mechanism was investigated and proposed based on the Fourier transform infrared spectroscopy（FTIR）,X-ray diffraction（XRD） and scanning electron microscopy（SEM）.This strategy could be applied to construct core-shellstructured precursors for the preparation of alkali earth silicate phosphors.
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