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Magnetic Materials Based on Layered Double Hydroxides

Nestroinaya, O. V. / Ryl’tsova, I. G. / Tarasenko, E. A. / Yapryntsev, M. N. / Solov’eva, A. A. / Lebedeva, O. E.

Composite materials that contain tetracationic hydrotalcite-like layered double hydroxide and a cobalt-iron spinel phase were prepared by coprecipitation from a solution of a mixture of magnesium, aluminum, cobalt(II), and iron(III) salts followed by hydrothermal treatment. The iron and cobalt contents in the samples were varied within a broad range. The thermal transformations of the prepared composites were examined by high-temperature X-ray diffraction, and the layered hydroxide phase was found to remain when heated up to 300°C. The specific magnetization and magnetic susceptibility of the materials were determined using a vibrating sample magnetometer; a rise in the iron and cobalt contents was found to increase the magnetization up to a certain limit. The obtained samples can be used as magnetic sorbents. The sorption capacity of materials was estimated using Congo red anionic dye as an example.

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Magnetic Materials Based on Layered Double Hydroxides

Nestroinaya, O. V. / Ryl’tsova, I. G. / Tarasenko, E. A. / Yapryntsev, M. N. / Solov’eva, A. A. / Lebedeva, O. E.

Composite materials that contain tetracationic hydrotalcite-like layered double hydroxide and a cobalt-iron spinel phase were prepared by coprecipitation from a solution of a mixture of magnesium, aluminum, cobalt(II), and iron(III) salts followed by hydrothermal treatment. The iron and cobalt contents in the samples were varied within a broad range. The thermal transformations of the prepared composites were examined by high-temperature X-ray diffraction, and the layered hydroxide phase was found to remain when heated up to 300°C. The specific magnetization and magnetic susceptibility of the materials were determined using a vibrating sample magnetometer; a rise in the iron and cobalt contents was found to increase the magnetization up to a certain limit. The obtained samples can be used as magnetic sorbents. The sorption capacity of materials was estimated using Congo red anionic dye as an example.

Magnetic Materials Based on Layered Double Hydroxides

Nestroinaya, O. V. / Ryl’tsova, I. G. / Tarasenko, E. A. / Yapryntsev, M. N. / Solov’eva, A. A. / Lebedeva, O. E.

Composite materials that contain tetracationic hydrotalcite-like layered double hydroxide and a cobalt-iron spinel phase were prepared by coprecipitation from a solution of a mixture of magnesium, aluminum, cobalt(II), and iron(III) salts followed by hydrothermal treatment. The iron and cobalt contents in the samples were varied within a broad range. The thermal transformations of the prepared composites were examined by high-temperature X-ray diffraction, and the layered hydroxide phase was found to remain when heated up to 300°C. The specific magnetization and magnetic susceptibility of the materials were determined using a vibrating sample magnetometer; a rise in the iron and cobalt contents was found to increase the magnetization up to a certain limit. The obtained samples can be used as magnetic sorbents. The sorption capacity of materials was estimated using Congo red anionic dye as an example.

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Title:

Magnetic Materials Based on Layered Double Hydroxides

Additional title:

Pet. Chem.

Contributors:

Nestroinaya, O. V. (author) / Ryl’tsova, I. G. (author) / Tarasenko, E. A. (author) / Yapryntsev, M. N. (author) / Solov’eva, A. A. (author) / Lebedeva, O. E. (author)

Published in:

Petroleum Chemistry ; 61 ; 388-393

Publication date:

2021-03-01

Size:

6 pages

ISSN:

1555-6239 , 0965-5441

DOI:

https://doi.org/10.1134/S096554412103004X

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

magnetic materials , layered double hydroxides , iron , cobalt , Congo red , sorption Chemistry , Industrial Chemistry/Chemical Engineering , Chemistry and Materials Science

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