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Magnetoactive Composite Sorbents CoFe2O4–SiO2

  • SYNTHESIS AND PROPERTIES OF INORGANIC COMPOUNDS
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Abstract

The magnetic and sorption properties of CoFe2O4 and SiO2 nanocomposites were studied. Composite samples were prepared by precipitation and impregnation using silica of plant or mineral origin. X-ray powder diffraction and IR spectroscopy showed that the composites comprise both amorphous SiO2 and 5.3–59.2% CoFe2O4. The sorptive capacity for methylene blue (8.8–26.7 mg/g) was higher than that of the precursor SiO2. All composites studied were ferromagnetic at room temperature. Their saturation magnetizations increased from 1.2 to 29.0 emu/g as the cobalt ferrite concentration in them increased.

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Funding

This study was done as part of the state assignment to the Institute Chemistry, Far East Branch of the Russian Academy of Sciences (topic No. AAAA-A17-117030910084-4).

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Authors and Affiliations

  1. Institute of Chemistry, Far-East Branch, Russian Academy of Sciences, 690022, Vladivostok, Russia

    I. A. Tkachenko, A. E. Panasenko, M. M. Odinokov & Yu. V. Marchenko

  2. Far Eastern Federal University, 690950, Vladivostok, Russia

    A. E. Panasenko & M. M. Odinokov

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  1. I. A. Tkachenko
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  2. A. E. Panasenko
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  3. M. M. Odinokov
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  4. Yu. V. Marchenko
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Correspondence to M. M. Odinokov.

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Translated by O. Fedorova

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Tkachenko, I.A., Panasenko, A.E., Odinokov, M.M. et al. Magnetoactive Composite Sorbents CoFe2O4–SiO2 . Russ. J. Inorg. Chem. 65, 1142–1149 (2020). https://doi.org/10.1134/S0036023620080173

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  • DOI: https://doi.org/10.1134/S0036023620080173

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