Magnetic, luminescent and core-shell structured Fe3O4@YF3:Ce~(3+),Tb~(3+) bifunctional nanocomposites

Hongxia Peng; Guixia Liu; Xiangting Dong

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Magnetic, luminescent and core-shell structured Fe3O4@YF3:Ce~(3+),Tb~(3+) bifunctional nanocomposites

机译：磁性，发光和核壳结构的Fe3O4 @ YF3：Ce〜（3 +），Tb〜（3+）双功能纳米复合材料

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Bifunctional magnetic-luminescent nanocomposites with Fe3O4 nanoparticles as the cores and YF3:Ce~(3+),Tb~(3+) 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. Photolu-minescence (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.

机译：采用简便的直接沉淀法合成了以Fe3O4纳米颗粒为核，YF3：Ce〜（3 +），Tb〜（3+）为壳的双功能磁性发光纳米复合材料。透射电子显微镜（TEM）图像显示，所获得的双官能纳米复合材料具有球形的核-壳结构，尺寸为160至220nm，壳厚度为约25nm。 X射线衍射（XRD）图谱表明，获得了Fe3O4核的立方尖晶石结构和YF3壳的正交相。光致发光（PL）光谱证实纳米复合材料显示出强烈的绿色发光。磁性测量表明，所获得的双功能纳米复合材料在室温下表现出更强的磁性。因此，双功能纳米复合材料有望在生物医学领域发展许多潜在的应用。

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《Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems》 |2012年第null期|共5页
作者
Hongxia Peng; Guixia Liu; Xiangting Dong;
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正文语种 eng
中图分类粉末技术;
关键词
Fe3O4; YF3:Ce~(3+); Tb~(3+); Core-shell; Magnetic-luminescent materials;

机译：Fe3O4;YF3：Ce〜（3 +）;Tb〜（3+）;核壳;磁致发光材料;

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1. Magnetic, luminescent and core-shell structured Fe3O4@YF3:Ce~(3+),Tb~(3+) bifunctional nanocomposites [J] . Hongxia Peng, Guixia Liu, Xiangting Dong Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems . 2012,第Null期

机译：磁性，发光和核壳结构的Fe3O4 @ YF3：Ce〜（3 +），Tb〜（3+）双功能纳米复合材料
2. Core-shell structured luminescent and mesoporous β-NaYF _4:Ce~(3+)/Tb~(3+)@mSiO_2-PEG nanospheres for anti-cancer drug delivery [J] . Wu Y., Yang D., Kang X., Dalton transactions: An international journal of inorganic chemistry . 2013,第27期

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Magnetic, luminescent and core-shell structured Fe3O4@YF3:Ce~(3+),Tb~(3+) bifunctional nanocomposites

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