Synthesis and Study of the Properties of Magnetic Adsorbents Based on Hydrophobized Silica

We proposed a method for producing magnetic nanocomposite adsorbents, based on the adsorption of Fe 3 O 4 magnetic nanoparticles (MNPs) on hydrophobized silicas with different structural characteristics. The magnetic properties, stability, and structural characteristics of the obtained magnetic adso...

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Bibliographic Details
Published in:Moscow University chemistry bulletin 2020-09, Vol.75 (5), p.293-298
Main Authors: Karsakova, Iu. V., Tikhomirova, T. I., Tsysin, G. I.
Format: Article
Language:English
Subjects:
Adsorbates
Adsorbents
Adsorption
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Iron oxides
Magnetic properties
Nanocomposites
Nanoparticles
Parameter modification
Production methods
Silica
Silicon dioxide
Structural stability
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Summary:We proposed a method for producing magnetic nanocomposite adsorbents, based on the adsorption of Fe 3 O 4 magnetic nanoparticles (MNPs) on hydrophobized silicas with different structural characteristics. The magnetic properties, stability, and structural characteristics of the obtained magnetic adsorbents are studied. The effect of the incorporation of Fe 3 O 4 nanoparticles into the adsorbent matrix on their adsorption capacity was studied. The adsorption properties of hydrophobized silicas modified by MNPs depend both on the structural parameters of the silica matrix and the sizes of adsorbate molecules.
ISSN:0027-1314
1935-0260
DOI:10.3103/S0027131420050041