Magnetic, luminescent and core-shell structured Fe3O4@YF3:Ce3+,Tb3+ bifunctional nanocomposites

被引：18

作者：

Peng, Hongxia ^{[1
]}

Liu, Guixia ^{[1
]}

Dong, Xiangting ^{[1
]}

Wang, Jinxian ^{[1
]}

Yu, Wensheng ^{[1
]}

Xu, Jia ^{[1
]}

机构：

[1] Changchun Univ Sci & Technol, Sch Chem & Environm Engn, Changchun 130022, Peoples R China

来源：

POWDER TECHNOLOGY | 2012年 / 215-16卷

关键词：

Fe3O4; YF3:Ce3+; Tb3+; Core-shell; Magnetic-luminescent materials; ONE-POT SYNTHESIS; NANOPARTICLES; FLUORESCENCE; FABRICATION;

D O I：

10.1016/j.powtec.2011.10.006

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Bifunctional magnetic-luminescent nanocomposites with Fe3O4 nanoparticles as the cores and YF3:Ce3+,Tb3+ as the shells were synthesized by a facile direct precipitation method. Transmission electron microscopy (TEM) images revealed that the obtained bifunctional nanocomposites had a core-shell structure, in a spherical shape with a size ranging from 160 to 220 nm, and the shell thickness of about 25 nm. The X-ray diffraction (XRD) patterns showed that a cubic spinel structure of Fe3O4 core and an orthogonal phase of YF3 shell were obtained. Photoluminescence (PL) spectra confirmed that the nanocomposites displayed a strong green light emission. Magnetic measurements indicated that the obtained bifunctional nanocomposites exhibited a stronger magnetic behavior at room temperature. Therefore, the bifunctional nanocomposites are expected to develop many potential applications in biomedical fields. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：242 / 246

页数：5

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