文章基本信息

标题：Synthesis, and Characteristic Luminescence of Core-Shell SiO 2@Eu(MABA-Si)·(phen) Microspheres
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作者：Yang-Yang Ma ; Wen-Xian Li ; Yu-Shan Zheng 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2018
卷号：142
DOI：10.1051/matecconf/201814204002
语种：English
出版社：EDP Sciences
摘要：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 SiO2as 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 SiO2core 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.