Next Article in Journal
Magnetizable Membranes Based on Cotton Microfibers, Honey, Carbonyl Iron, and Silver Nanoparticles: Effects of Static Magnetic Fields and Medium-Frequency Electric Fields on Electrical Properties
Next Article in Special Issue
Nanomaterial Endocytosis: Quantification of Adsorption and Ingestion Mechanisms
Previous Article in Journal
Slow Magnetic Relaxation in Cobalt(II) Complexes with One-Dimensional Hydrogen-Bonded Networks
Previous Article in Special Issue
Iron Oxides Nanoparticles as Components of Ferroptosis-Inducing Systems: Screening of Potential Candidates
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Magnetochemistry
Volume 9
Issue 1
10.3390/magnetochemistry9010018
magnetochemistry-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Impact of Silica-Modification and Oxidation on the Crystal Structure of Magnetite Nanoparticles

by
Artur Dzeranov
1,2,
Lyubov Bondarenko
1,*,
Denis Pankratov
3,
Gulzhian Dzhardimalieva
1,4,
Sharipa Jorobekova
5,
Daniel Saman
1 and
Kamila Kydralieva
1
1
Moscow Aviation Institute (National Research University), Moscow 125993, Russia
2
Sklifosovsky Institute for Emergency Medicine, Moscow 129090, Russia
3
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
4
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka 142432, Moscow Region, Russia
5
Institute of Chemistry and Phytotechnologies, National Academy of Sciences, Bishkek 720071, Kyrgyzstan
*
Author to whom correspondence should be addressed.
Magnetochemistry 2023, 9(1), 18; https://doi.org/10.3390/magnetochemistry9010018
Submission received: 28 November 2022 / Revised: 28 December 2022 / Accepted: 30 December 2022 / Published: 2 January 2023
(This article belongs to the Special Issue Magnetic Nanoparticles for Biomedicine 2022)
Browse Figures
Review Reports Versions Notes

Abstract

At present, the widespread use of iron oxide nanoparticles, including for commercial purposes, requires strict preservation of their phase composition during their application. The choice of nanoparticle modifier and modification conditions is decisive due to their high sensitivity to oxygen in the case of using real conditions (O2, pH change, etc.). In this work, we studied the change in the phase composition of magnetite nanoparticles after modification with 3-aminopropyltriethoxysilane (APTES) and oxidation with nitric acid in order to estimate the protective potential of the silica shell. After modification by APTES and oxidation with nitric acid, the nonstoichiometric nature of the magnetite nanoparticles according to XRD data increased, which indicates an increase in transition forms compared to the initial sample (magnetite content decreased to 27% and 24%, respectively). In contrast, Mössbauer spectroscopy data detected a decrease in the nonstoichiometric index due to APTES modification conditions, but strong oxidation after exposure to nitric acid. It also showed that by analyzing the data of the diffraction analysis and Mössbauer spectroscopy for the same sample, one can obtain information not only about the ionic composition of “magnetite”, but also about the distribution of iron ions of different charges over the crystalline and amorphous parts of the preparation.
Keywords: magnetite nanoparticles; silica-modified magnetite nanoparticles; oxidation degree; amorphous and crystal phases; X-ray analysis; Mössbauer spectroscopy magnetite nanoparticles; silica-modified magnetite nanoparticles; oxidation degree; amorphous and crystal phases; X-ray analysis; Mössbauer spectroscopy

Share and Cite

MDPI and ACS Style

Dzeranov, A.; Bondarenko, L.; Pankratov, D.; Dzhardimalieva, G.; Jorobekova, S.; Saman, D.; Kydralieva, K. Impact of Silica-Modification and Oxidation on the Crystal Structure of Magnetite Nanoparticles. Magnetochemistry 2023, 9, 18. https://doi.org/10.3390/magnetochemistry9010018

AMA Style

Dzeranov A, Bondarenko L, Pankratov D, Dzhardimalieva G, Jorobekova S, Saman D, Kydralieva K. Impact of Silica-Modification and Oxidation on the Crystal Structure of Magnetite Nanoparticles. Magnetochemistry. 2023; 9(1):18. https://doi.org/10.3390/magnetochemistry9010018

Chicago/Turabian Style

Dzeranov, Artur, Lyubov Bondarenko, Denis Pankratov, Gulzhian Dzhardimalieva, Sharipa Jorobekova, Daniel Saman, and Kamila Kydralieva. 2023. "Impact of Silica-Modification and Oxidation on the Crystal Structure of Magnetite Nanoparticles" Magnetochemistry 9, no. 1: 18. https://doi.org/10.3390/magnetochemistry9010018

APA Style

Dzeranov, A., Bondarenko, L., Pankratov, D., Dzhardimalieva, G., Jorobekova, S., Saman, D., & Kydralieva, K. (2023). Impact of Silica-Modification and Oxidation on the Crystal Structure of Magnetite Nanoparticles. Magnetochemistry, 9(1), 18. https://doi.org/10.3390/magnetochemistry9010018

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop