Synthesis of superparamagnetic bare Fe3O4 nanostructures and core/shell (Fe3O4/alginate) nanocomposites

被引：100
|
作者：
Srivastava, Manish [1 ,5 ]
Singh, Jay [2 ]
Yashpal, Madhu [3 ]
Gupta, Dinesh Kumar [4 ]
Mishra, R. K. [1 ]
Tripathi, Shipra [6 ]
Ojha, Animesh K. [1 ]
机构：
[1] Motilal Nehru Natl Inst Technol, Dept Phys, Allahabad 211004, Uttar Pradesh, India
[2] Natl Phys Lab, Dept Sci & Technol, Ctr Biomol Elect, Biomed Instrumentat Sect, New Delhi 110012, India
[3] Banaras Hindu Univ, Inst Med Sci, Dept Anat, Electron Microscope Facil, Varanasi 221005, Uttar Pradesh, India
[4] Motilal Nehru Natl Inst Technol, Dept Chem, Allahabad 211004, Uttar Pradesh, India
[5] DIT, Sch Engn, Dept Phys, Greater Noida 248001, India
[6] Galgotias Univ, Sch Basic & Appl Sci, Dept Chem, Gautam Budha Nagar 201306, India
来源：
CARBOHYDRATE POLYMERS | 2012年 / 89卷 / 03期
关键词：
Magnetic NPs; Composites; Biomedical; Alginate; Core-shell; DIELECTRIC-PROPERTIES; RAMAN; NANOPARTICLES; COMPOSITE; MICROSPHERES; MAGNETITE; PH;
D O I：
10.1016/j.carbpol.2012.04.016
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In this article we report about the synthesis of superparamagnetic bare Fe3O4 nanostructures and core/shell (Fe3O4/alginate) nanocomposites by simple low-temperature based method at pH values 5. 9, and 14. The structural morphology and magnetic behavior of Fe3O4 nanostructures and core/shell (Fe3O4/alginate) nanocomposites (Fe3O4/alg NCs) have been investigated by X-ray diffractometer (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy (RS), ultraviolet-visible (UV-vis) spectroscopy, transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX) and vibrating sample magnetometer (VSM). The particle size was calculated by TEM measurements and it turns out to be similar to 10 nm and similar to 14 nm for bare Fe3O4 nanoparticle and Fe3O4/alg NCs with core/shell structure, respectively. The magnetic properties of the synthesized products were found to be function of pH at which the synthesis has been done. The synthesized Fe3O4 nanoparticle and Fe3O4/alg NCs were found to be superparmagnetic in nature at room temperature. We observed that the value of saturation magnetization in case of Fe3O4/alg NCs decreases by increasing the pH value. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：821 / 829
页数：9
相关论文
共 50 条
  • [21] Monodispersed Superparamagnetic Fe3O4 Nanoparticles: Synthesis and Characterization
    Parekh, Kinnari
    Upadhyay, Ramesh V.
    Aswal, Vinod K.
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2009, 9 (03) : 2104 - 2110
  • [22] Synthesis and properties of Fe/Fe3O4 nanocomposites coated with ZnS
    Liu, Deming
    Tong, Lizhu
    Shi, Jianhui
    Yang, Xuwei
    Yang, Hua
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2012, 23 (02) : 464 - 467
  • [23] Synthesis and properties of Fe/Fe3O4 nanocomposites coated with ZnS
    Deming Liu
    Lizhu Tong
    Jianhui Shi
    Xuwei Yang
    Hua Yang
    Journal of Materials Science: Materials in Electronics, 2012, 23 : 464 - 467
  • [24] Facile transformation of FeO/Fe3O4 core-shell nanocubes to Fe3O4 via magnetic stimulation
    Lak, Aidin
    Niculaes, Dina
    Anyfantis, George C.
    Bertoni, Giovanni
    Barthel, Markus J.
    Marras, Sergio
    Cassani, Marco
    Nitti, Simone
    Athanassiou, Athanassia
    Giannini, Cinzia
    Pellegrino, Teresa
    SCIENTIFIC REPORTS, 2016, 6
  • [25] Magnetic core/shell Fe3O4/Au and Fe3O4/Au/Ag nanoparticles with tunable plasmonic properties
    Xu, Zhichuan
    Hou, Yanglong
    Sun, Shouheng
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (28) : 8698 - +
  • [26] Bimagnetic core/shell FePt/Fe3O4 nanoparticles
    Zeng, H
    Li, J
    Wang, ZL
    Liu, JP
    Sun, SH
    NANO LETTERS, 2004, 4 (01) : 187 - 190
  • [27] In vitro biological evaluations of Fe3O4 compared with core–shell structures of chitosan-coated Fe3O4 and polyacrylic acid-coated Fe3O4 nanoparticles
    Sheida Lotfi
    Ali Bahari
    Soleiman Mahjoub
    Research on Chemical Intermediates, 2019, 45 : 3497 - 3512
  • [28] Nonquenching of Charge Carriers by Fe3O4 Core in Fe3O4/ZnO Nanosheet Photocatalyst
    Karunakaran, Chockalingam
    Vinayagamoorthy, Pazhamalai
    Jayabharathi, Jayaraman
    LANGMUIR, 2014, 30 (49) : 15031 - 15039
  • [29] Fe3O4/SiO2 Core Shell Nanostructures: Preparation and Characterization
    Zaytseva, M. P.
    Muradova, A. G.
    Sharapaev, A. I.
    Yurtov, E. V.
    Grebennikov, I. S.
    Savchenko, A. G.
    RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2018, 63 (12) : 1684 - 1688
  • [30] Fe3O4/SiO2 Core Shell Nanostructures: Preparation and Characterization
    M. P. Zaytseva
    A. G. Muradova
    A. I. Sharapaev
    E. V. Yurtov
    I. S. Grebennikov
    A. G. Savchenko
    Russian Journal of Inorganic Chemistry, 2018, 63 : 1684 - 1688
12345