Synthesis, and Characteristic Luminescence of Core-Shell SiO2@Eu(MABA-Si)·(phen) Microspheres

Monodispersed SiO2@Eu(MABA-Si)·(phen) core-shell microspheres were synthesized by silane coupling agent method. The core-shell microspheres was used the europium complex Eu(MABA-Si)·(phen)2·(ClO4)3·2H2O as shell and SiO2 as the inorganic core. The europium complex shell has grafted to silica surface...

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Bibliographic Details
Published inMATEC Web of Conferences Vol. 142; p. 04002
Main Authors Yang-Yang, Ma, Wen-Xian, Li, Yu-Shan, Zheng
Format Conference Proceeding Journal Article
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2018
Subjects
Coupling agents
Europium
Fluorescence
Infrared analysis
Microspheres
Silicon dioxide
Synthesis
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Summary:Monodispersed SiO2@Eu(MABA-Si)·(phen) core-shell microspheres were synthesized by silane coupling agent method. The core-shell microspheres was used the europium complex Eu(MABA-Si)·(phen)2·(ClO4)3·2H2O as shell and SiO2 as the inorganic core. The europium complex shell has grafted to silica surface through forming a Si-O-Si bond. The europium complex was synthesized by HOOCC6H4N- (CONH(CH2)3Si(OCH2CH3)3)2 (denoted as MABA-Si) and phen coordinated europium perchlorate. The europium complex has been characterized by element analysis, molar conductivity, 1HNMR and IR. The TEM and SEM showed that the diameter of SiO2 core was about 400 nm and the thickness of the europium complex shell was about 20 nm. Fluorescence spectra illustrated that the core-shell microspheres have stronger fluorescence intensity than the europium complex which was 1.87 times.
ISSN:2274-7214
2261-236X
DOI:10.1051/matecconf/201714204002