Abstract
Monodisperse (Sr, Eu)CO3sphere (the homogenous mixture of Sr2+and Eu3+carbonates) was firstly prepared, and then its surface was coated by amorphous SiO2in the presence of cationic surfactant cetyltrimethylammonium bromide (CTAB) to form (Sr, Eu)CO3SiO2core-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-shell structured precursors for the preparation of alkali earth silicate phosphors.
Original language | English |
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Pages (from-to) | 911-914 |
Number of pages | 4 |
Journal | Journal of Rare Earths |
Volume | 29 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Jan 2011 |
Keywords
- core-shell structure
- formation mechanism
- phosphor
- precursor
- rare earths
ASJC Scopus subject areas
- General Chemistry
- Geochemistry and Petrology