Removal of microplastics from water by using magnetic sedimentation

Bakhteeva, Yu. A.; Медведева, И. В.; Filinkova, Marina S.; Бызов, И. В.; Minin, Artem S.; Zhakov, S. V.; Уймин, М. А.; Патраков, Е. И.; Novikov, S. I.; Suntsov, A. Yu.; Demin, A. M.

doi:10.1007/s13762-023-04776-1

Cited by 9 publications

(1 citation statement)

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“…Magnetic nanoparticles (MNPs) based on iron oxides (Fe 3 O 4 , γ-Fe 2 O 3 , etc.) due to their unique properties (primarily magnetic), the possibility of varying sizes and shapes, the ease of their surface modification as well as biocompatibility are widely used in various fields of science and technology: catalysis [1], biomedicine [2][3][4][5], food safety monitoring [6] environmental remediation and energy [7][8][9], etc. Currently, there is a wide range of methods to obtain MNPs, which make it possible to synthesize particles of various sizes and shapes [10].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Nanocomposite Materials Based on Fe3O4 Nanoparticles with Iron and Silica Glycerolates Shell: Synthesis and Characterization

Хонина

Demin

Tishin

et al. 2023

IJMS

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Novel magnetic nanocomposite materials based on Fe3O4 nanoparticles coated with iron and silica glycerolates (MNP@Fe(III)Glyc and MNP@Fe(III)/SiGlyc) were obtained. The synthesized nanocomposites were characterized using TEM, XRD, TGA, VMS, Mössbauer and IR spectroscopy. The amount of iron and silica glycerolates in the nanocomposites was calculated from the Mössbauer spectroscopy, ICP AES and C,H-elemental analysis. Thus, it has been shown that the distribution of Fe in the shell and core for MNP@Fe(III)Glyc and MNP@Fe(III)/SiGlyc is 27:73 and 32:68, respectively. The synthesized nanocomposites had high specific magnetization values and a high magnetic response to the alternating magnetic field. The hydrolysis of shells based on Fe(III)Glyc and Fe(III)/SiGlyc in aqueous media has been studied. It has been demonstrated that, while the iron glycerolates shell of MNP@Fe(III)Glyc is resistant to hydrolysis, the silica glycerolates shell of MNP@Fe(III)/SiGlyc is rather labile and hydrolyzed by 76.4% in 24 h at 25 °C. The synthesized materials did not show cytotoxicity in in vitro experiments (MTT-assay). The data obtained can be used in the design of materials for controlled-release drug delivery.

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