中国物理B ›› 2016, Vol. 25 ›› Issue (10): 107504-107504.doi: 10.1088/1674-1056/25/10/107504

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Structural and magnetic properties of turmeric functionalized CoFe2O4 nanocomposite powder

E Mehran, S Farjami Shayesteh, M Sheykhan   

  1. 1 Nanostructures Laboratory, Department of Physics, University of Guilan, 41335-1914, Rasht, Iran;
    2 Department of Chemistry, University of Guilan, 41335-1914, Rasht, Iran
  • 收稿日期:2016-04-20 修回日期:2016-06-06 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: S Farjami Shayesteh E-mail:saber@guilan.ac.ir
  • 基金资助:
    Project supported by the University of Guilan and the Iran Nanotechnology Initiative Council.

Structural and magnetic properties of turmeric functionalized CoFe2O4 nanocomposite powder

E Mehran1, S Farjami Shayesteh1, M Sheykhan2   

  1. 1 Nanostructures Laboratory, Department of Physics, University of Guilan, 41335-1914, Rasht, Iran;
    2 Department of Chemistry, University of Guilan, 41335-1914, Rasht, Iran
  • Received:2016-04-20 Revised:2016-06-06 Online:2016-10-05 Published:2016-10-05
  • Contact: S Farjami Shayesteh E-mail:saber@guilan.ac.ir
  • Supported by:
    Project supported by the University of Guilan and the Iran Nanotechnology Initiative Council.

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摘要： The structural and magnetic properties of the synthesized pure and functionalized CoFe2O4 magnetic nanoparticles (NPs) are studied by analyzing the results from the x-ray diffraction (XRD), transmission electron microscopy (TEM), FT-IR spectroscopy, thermogravimetry (TG), and vibrating sample magnetometer (VSM). To extract the structure and lattice parameters from the XRD analysis results, we first apply the pseudo-Voigt model function to the experimental data obtained from XRD analysis and then the Rietveld algorithm is used in order to optimize the model function to estimate the true intensity values. Our simulated intensities are in good agreement with the experimental peaks, therefore, all structural parameters such as crystallite size and lattice constant are achieved through this simulation. Magnetic analysis reveals that the synthesized functionalized NPs have a saturation magnetization almost equal to that of pure nanoparticles (PNPs). It is also found that the presence of the turmeric causes a small reduction in coercivity of the functionalized NPs in comparison with PNP. Our TGA and FTIR results show that the turmeric is bonded very well to the surface of the NPs. So it can be inferred that a nancomposite (NC) powder of turmeric and nanoparticles is produced. As an application, the anti-arsenic characteristic of turmeric makes the synthesized functionalized NPs or NC powder a good candidate for arsenic removal from polluted industrial waste water.

关键词: cobalt ferrite nanoparticles, structural properties, magnetic properties, turmeric

Abstract: The structural and magnetic properties of the synthesized pure and functionalized CoFe2O4 magnetic nanoparticles (NPs) are studied by analyzing the results from the x-ray diffraction (XRD), transmission electron microscopy (TEM), FT-IR spectroscopy, thermogravimetry (TG), and vibrating sample magnetometer (VSM). To extract the structure and lattice parameters from the XRD analysis results, we first apply the pseudo-Voigt model function to the experimental data obtained from XRD analysis and then the Rietveld algorithm is used in order to optimize the model function to estimate the true intensity values. Our simulated intensities are in good agreement with the experimental peaks, therefore, all structural parameters such as crystallite size and lattice constant are achieved through this simulation. Magnetic analysis reveals that the synthesized functionalized NPs have a saturation magnetization almost equal to that of pure nanoparticles (PNPs). It is also found that the presence of the turmeric causes a small reduction in coercivity of the functionalized NPs in comparison with PNP. Our TGA and FTIR results show that the turmeric is bonded very well to the surface of the NPs. So it can be inferred that a nancomposite (NC) powder of turmeric and nanoparticles is produced. As an application, the anti-arsenic characteristic of turmeric makes the synthesized functionalized NPs or NC powder a good candidate for arsenic removal from polluted industrial waste water.

Key words: cobalt ferrite nanoparticles, structural properties, magnetic properties, turmeric

中图分类号:  (Fabrication of magnetic nanostructures)

  • 75.75.Cd
81.07.Bc (Nanocrystalline materials) 81.16.Be (Chemical synthesis methods)