留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
Volume 23 Issue 9
Sep.  2016
数据统计

分享

计量
  • 文章访问数:  445
  • HTML全文浏览量:  126
  • PDF下载量:  26
  • 被引次数: 0
Le Zhang, Hui-ping Shao, Hang Zheng, Tao Lin,  and Zhi-meng Guo, Synthesis and characterization of Fe3O4@SiO2 magnetic composite nanoparticles by a one-pot process, Int. J. Miner. Metall. Mater., 23(2016), No. 9, pp. 1112-1118. https://doi.org/10.1007/s12613-016-1329-6
Cite this article as:
Le Zhang, Hui-ping Shao, Hang Zheng, Tao Lin,  and Zhi-meng Guo, Synthesis and characterization of Fe3O4@SiO2 magnetic composite nanoparticles by a one-pot process, Int. J. Miner. Metall. Mater., 23(2016), No. 9, pp. 1112-1118. https://doi.org/10.1007/s12613-016-1329-6
引用本文 PDF XML SpringerLink

Synthesis and characterization of Fe3O4@SiO2 magnetic composite nanoparticles by a one-pot process

  • 通讯作者:

    Hui-ping Shao    E-mail: shaohp@ustb.edu.cn

  • Fe3O4@SiO2 core–shell composite nanoparticles were successfully prepared by a one-pot process. Tetraethyl-orthosilicate was used as a surfactant to synthesize Fe3O4@SiO2 core–shell structures from prepared Fe3O4 nanoparticles. The properties of the Fe3O4 and Fe3O4@SiO2 composite nanoparticles were studied by X-ray diffraction, transmission electron microscopy, energy dispersive spectroscopy, and Fourier transform infrared spectroscopy. The prepared Fe3O4 particles were approximately 12 nm in size, and the thickness of the SiO2 coating was approximately 4 nm. The magnetic properties were studied by vibrating sample magnetometry. The results show that the maximum saturation magnetization of the Fe3O4@SiO2 powder (34.85 A·m2·kg–1) was markedly lower than that of the Fe3O4 powder (79.55 A·m2·kg–1), which demonstrates that Fe3O4 was successfully wrapped by SiO2. The Fe3O4@SiO2 composite nanoparticles have broad prospects in biomedical applications; thus, our next study will apply them in magnetic resonance imaging.
  • Synthesis and characterization of Fe3O4@SiO2 magnetic composite nanoparticles by a one-pot process

    + Author Affiliations
    • Fe3O4@SiO2 core–shell composite nanoparticles were successfully prepared by a one-pot process. Tetraethyl-orthosilicate was used as a surfactant to synthesize Fe3O4@SiO2 core–shell structures from prepared Fe3O4 nanoparticles. The properties of the Fe3O4 and Fe3O4@SiO2 composite nanoparticles were studied by X-ray diffraction, transmission electron microscopy, energy dispersive spectroscopy, and Fourier transform infrared spectroscopy. The prepared Fe3O4 particles were approximately 12 nm in size, and the thickness of the SiO2 coating was approximately 4 nm. The magnetic properties were studied by vibrating sample magnetometry. The results show that the maximum saturation magnetization of the Fe3O4@SiO2 powder (34.85 A·m2·kg–1) was markedly lower than that of the Fe3O4 powder (79.55 A·m2·kg–1), which demonstrates that Fe3O4 was successfully wrapped by SiO2. The Fe3O4@SiO2 composite nanoparticles have broad prospects in biomedical applications; thus, our next study will apply them in magnetic resonance imaging.
    • loading

    Catalog


    • /

      返回文章
      返回