Effect of Ti Atoms on Néel Relaxation Mechanism at Magnetic Heating Performance of Iron Oxide Nanoparticles

Musa Mutlu Can; Chasan Bairam; Seda Aksoy; Dürdane Serap Kuruca; Satoru Kaneko; Zerrin Aktaş; Mustafa Oral Öncül

doi:10.3390/coatings12040481

Effect of Ti Atoms on Néel Relaxation Mechanism at Magnetic Heating Performance of Iron Oxide Nanoparticles

Musa Mutlu Can^*, Chasan Bairam, Seda Aksoy, Dürdane Serap Kuruca, Satoru Kaneko, Zerrin Aktaş, Mustafa Oral Öncül

^*Corresponding author for this work

Department of Physics Engineering

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

The study was based on understanding the relationship between titanium (Ti) doping amount and magnetic heating performance of magnetite (Fe₃O₄ ). Superparamagnetic nanosized Ti-doped magnetite ((Fe_1−x,Ti_x )₃O₄; x = 0.02, 0.03 and 0.05) particles were synthesized by sol-gel technique. In addition to (Fe_1−x,Ti_x )₃O₄ nanoparticles, SiO₂ coated (Fe_1−x,Ti_x)₃O₄ nanoparticles were produced as core-shell structures to understand the effects of silica coating on the magnetic properties of nanoparticles. Moreover, the magnetic properties were associated with the Néel relaxation mechanism due to the magnetic heating ability of single-domain state nanoparticles. In terms of results, it was observed that the induced RF magnetic field for SiO₂ coated (Fe_0.97,Ti_0.03 )₃O₄ nanoparticles caused an increase in temperature difference (∆T), which reached up to 22^◦C in 10 min. The ∆T values of SiO₂ coated (Fe_0.97,Ti_0.03 )₃O₄ nanoparticles were very close to the values of uncoated Fe₃O₄ nanoparticles.

Original language	English
Article number	481
Journal	Coatings
Volume	12
Issue number	4
DOIs	https://doi.org/10.3390/coatings12040481
Publication status	Published - Apr 2022

Bibliographical note

Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).

Funding

S.A.; writing—original draft preparation, M.M.C.; writing—review and editing, M.M.C., S.A., D.S.K., S.K.,Z.A.andM.O.Ö.;visualization, M.M.C.;supervision, M.M.C.;projectadministration, M.M.SCiO.;2Allolwaeurtehdortsh ehSaAveR rveaaldu easnodf (aFger1e−exd, Ttixo) 3thOe4 pnuabnlioshpeadr ticlveesr.sHioonw oefvethr,ef omr aSniOu 2sccroipatte.d samples increase in Ti4+ ions amount in lattice caused an increase in SAR value, which Funding: Thisworkwas alsosupported3 by 4 Scientific Research Projects Coordination UnitofIstan-bul Universitywith project number FBG-2018-28289. Funding: This work was also supported by Scientific Research Projects Coordination Unit of Istanbul University with project number FBG-2018-28289.

Funders	Funder number
4 Scientific Research Projects Coordination UnitofIstan-bul Universitywith
Istanbul Üniversitesi	FBG-2018-28289

Keywords

Néel relaxation
magnetic hyperthermia
oxide semiconductor
point defects
superparamagnetic nanoparticles

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title = "Effect of Ti Atoms on N{\'e}el Relaxation Mechanism at Magnetic Heating Performance of Iron Oxide Nanoparticles",

abstract = "The study was based on understanding the relationship between titanium (Ti) doping amount and magnetic heating performance of magnetite (Fe3O4 ). Superparamagnetic nanosized Ti-doped magnetite ((Fe1−x,Tix )3O4; x = 0.02, 0.03 and 0.05) particles were synthesized by sol-gel technique. In addition to (Fe1−x,Tix )3O4 nanoparticles, SiO2 coated (Fe1−x,Tix)3O4 nanoparticles were produced as core-shell structures to understand the effects of silica coating on the magnetic properties of nanoparticles. Moreover, the magnetic properties were associated with the N{\'e}el relaxation mechanism due to the magnetic heating ability of single-domain state nanoparticles. In terms of results, it was observed that the induced RF magnetic field for SiO2 coated (Fe0.97,Ti0.03 )3O4 nanoparticles caused an increase in temperature difference (∆T), which reached up to 22◦C in 10 min. The ∆T values of SiO2 coated (Fe0.97,Ti0.03 )3O4 nanoparticles were very close to the values of uncoated Fe3O4 nanoparticles.",

keywords = "N{\'e}el relaxation, magnetic hyperthermia, oxide semiconductor, point defects, superparamagnetic nanoparticles",

author = "Can, \{Musa Mutlu\} and Chasan Bairam and Seda Aksoy and Kuruca, \{D{\"u}rdane Serap\} and Satoru Kaneko and Zerrin Akta{\c s} and {\"O}nc{\"u}l, \{Mustafa Oral\}",

note = "Publisher Copyright: {\textcopyright} 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).",

year = "2022",

month = apr,

doi = "10.3390/coatings12040481",

language = "English",

volume = "12",

journal = "Coatings",

issn = "2079-6412",

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T1 - Effect of Ti Atoms on Néel Relaxation Mechanism at Magnetic Heating Performance of Iron Oxide Nanoparticles

AU - Can, Musa Mutlu

AU - Bairam, Chasan

AU - Aksoy, Seda

AU - Kuruca, Dürdane Serap

AU - Kaneko, Satoru

AU - Aktaş, Zerrin

AU - Öncül, Mustafa Oral

N1 - Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).

PY - 2022/4

Y1 - 2022/4

N2 - The study was based on understanding the relationship between titanium (Ti) doping amount and magnetic heating performance of magnetite (Fe3O4 ). Superparamagnetic nanosized Ti-doped magnetite ((Fe1−x,Tix )3O4; x = 0.02, 0.03 and 0.05) particles were synthesized by sol-gel technique. In addition to (Fe1−x,Tix )3O4 nanoparticles, SiO2 coated (Fe1−x,Tix)3O4 nanoparticles were produced as core-shell structures to understand the effects of silica coating on the magnetic properties of nanoparticles. Moreover, the magnetic properties were associated with the Néel relaxation mechanism due to the magnetic heating ability of single-domain state nanoparticles. In terms of results, it was observed that the induced RF magnetic field for SiO2 coated (Fe0.97,Ti0.03 )3O4 nanoparticles caused an increase in temperature difference (∆T), which reached up to 22◦C in 10 min. The ∆T values of SiO2 coated (Fe0.97,Ti0.03 )3O4 nanoparticles were very close to the values of uncoated Fe3O4 nanoparticles.

AB - The study was based on understanding the relationship between titanium (Ti) doping amount and magnetic heating performance of magnetite (Fe3O4 ). Superparamagnetic nanosized Ti-doped magnetite ((Fe1−x,Tix )3O4; x = 0.02, 0.03 and 0.05) particles were synthesized by sol-gel technique. In addition to (Fe1−x,Tix )3O4 nanoparticles, SiO2 coated (Fe1−x,Tix)3O4 nanoparticles were produced as core-shell structures to understand the effects of silica coating on the magnetic properties of nanoparticles. Moreover, the magnetic properties were associated with the Néel relaxation mechanism due to the magnetic heating ability of single-domain state nanoparticles. In terms of results, it was observed that the induced RF magnetic field for SiO2 coated (Fe0.97,Ti0.03 )3O4 nanoparticles caused an increase in temperature difference (∆T), which reached up to 22◦C in 10 min. The ∆T values of SiO2 coated (Fe0.97,Ti0.03 )3O4 nanoparticles were very close to the values of uncoated Fe3O4 nanoparticles.

KW - Néel relaxation

KW - magnetic hyperthermia

KW - oxide semiconductor

KW - point defects

KW - superparamagnetic nanoparticles

UR - https://www.scopus.com/pages/publications/85128372264

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DO - 10.3390/coatings12040481

M3 - Article

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VL - 12

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IS - 4

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ER -

Effect of Ti Atoms on Néel Relaxation Mechanism at Magnetic Heating Performance of Iron Oxide Nanoparticles

Abstract

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Keywords

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