Synthesis and Magnetic-Luminescent Multifunctional Properties of Fe3O4@SiO2@Y2O3:Eu3+ Core-Shell-Shell Nanocomposite

被引：7

作者：

Xu, Mei ^{[1
]}

Cao, Dong ^{[1
]}

Hu, Jianling ^{[1
]}

Wang, Ziya ^{[1
]}

Wang, Fengping ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Phys, Beijing 100083, Peoples R China

来源：

NANOSCIENCE AND NANOTECHNOLOGY LETTERS | 2016年 / 8卷 / 05期

关键词：

Multifunctional; Magnetism; Luminescence; Core-Shell-Shell; OXIDE NANOPARTICLES; ZNO NANOPARTICLES; LIGHT; SURFACE; SILICA; FUNCTIONALIZATION; NANOSTRUCTURES; COMPOSITES; SPHERES; LASERS;

D O I：

10.1166/nnl.2016.2154

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Hydrothermal synthesized magnetite nanospheres, Fe3O4, have been encapsulated with silica shell and then with luminescent phosphors Y2O3:Eu3+ to fabricate magnetic-luminescent multifunctional core-shell-shell nanoparticles Fe3O4@SiO2@Y2O3:Eu3+. A combination of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, vibrating sample magnetometer, and photoluminescence spectrometer was used to characterize the samples. The obtained Fe3O4@SiO2@Y2O3:Eu3+ core-shell-shell nanocomposites show uniform and clear cladding layers with total thickness of 35 nm. It exhibits high saturation magnetizations MS of 31.9 emu/g and negligible coercivity at room temperature and a strong red emission peak originating from the D-5(0) -> F-7(2) transition of Eu3+ at 609 nm under UV excitation. This magnetic-luminescent multifunctional material may have potential application in targeted drugs.

引用

页码：418 / 423

页数：6

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