Hydrothermally synthesized Fe3O4 microparticles: Structural, magnetic, Mössbauer and magneto-hyperthermia properties
We present hydrothermally prepared Fe3O4 microparticles with diverse morphologies such as long micro-rods (LMRs), short micro-rods (SMRs), and micro-disks (MDs) through thermal-reduction of α-Fe2O3as support during the crystallization processes. The impact of PO43− anions was systematically explored...
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Elsevier
2025-03-01
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| Series: | Results in Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715625000499 |
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| author | Gopal Niraula Jose A.H. Coaquira Edgar Obed Pérez Reyes Yasir Javed Edilso Reguera Joel Garcia Surender Kumar Sharma |
| author_facet | Gopal Niraula Jose A.H. Coaquira Edgar Obed Pérez Reyes Yasir Javed Edilso Reguera Joel Garcia Surender Kumar Sharma |
| author_sort | Gopal Niraula |
| collection | DOAJ |
| description | We present hydrothermally prepared Fe3O4 microparticles with diverse morphologies such as long micro-rods (LMRs), short micro-rods (SMRs), and micro-disks (MDs) through thermal-reduction of α-Fe2O3as support during the crystallization processes. The impact of PO43− anions was systematically explored with significant influence on tuning the prepared materials' sizes/shapes and phase composition/stoichiometry. A lower concentration of PO43− anions promotes the growth of a mixed iron-oxide phase, for instance, LMRs/SMRs; whereas a higher one results in a pure single-phase cubic Fe3O4structure (MDs) The line shape of the Fe2p region using the multiplets splitting model suggests that Fe3O4 is mainly present at the surface as validated through Mossbauer spectroscopy. Magnetization measurements revealed an alteration of the Verwey transition from LMRs/SMRs to MDs. Further, these microstructures were examined for their efficiencies in adjusting the hyperthermia response, with specific absorption rates peaking from 2.8 to 3.4 W/g and are noticeably dominated by the shape anisotropy. |
| format | Article |
| id | doaj-art-32ce26f9fbac49e4a943f11959791bbd |
| institution | DOAJ |
| issn | 2211-7156 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj-art-32ce26f9fbac49e4a943f11959791bbd2025-08-20T02:47:39ZengElsevierResults in Chemistry2211-71562025-03-011410206610.1016/j.rechem.2025.102066Hydrothermally synthesized Fe3O4 microparticles: Structural, magnetic, Mössbauer and magneto-hyperthermia propertiesGopal Niraula0Jose A.H. Coaquira1Edgar Obed Pérez Reyes2Yasir Javed3Edilso Reguera4Joel Garcia5Surender Kumar Sharma6Department of Physics, Federal University of Maranhao, Sao Luis 65080-805, Brazil; Laboratory of Magnetic Materials, NFA, Institute of Physics, University of Brasilia, Brasilia 70910-900, Brazil; Corresponding authors at: Department of Physics, Federal University of Maranhao, Sao Luis 65080-805, Brazil.Laboratory of Magnetic Materials, NFA, Institute of Physics, University of Brasilia, Brasilia 70910-900, BrazilInstituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada (IPN-CICATA), 11500 Ciudad de México, MexicoDepartment of Physics, University of Agriculture Faisalabad, PakistanInstituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada (IPN-CICATA), 11500 Ciudad de México, MexicoDepartment of Chemistry, De La Salle University, Manila, Philippines; Corresponding authors.Department of Physics, Central University of Punjab, Bathinda 151401, India; Department of Physics, Federal University of Maranhao, Sao Luis 65080-805, Brazil; Corresponding authors at: Department of Physics, Federal University of Maranhao, Sao Luis 65080-805, Brazil.We present hydrothermally prepared Fe3O4 microparticles with diverse morphologies such as long micro-rods (LMRs), short micro-rods (SMRs), and micro-disks (MDs) through thermal-reduction of α-Fe2O3as support during the crystallization processes. The impact of PO43− anions was systematically explored with significant influence on tuning the prepared materials' sizes/shapes and phase composition/stoichiometry. A lower concentration of PO43− anions promotes the growth of a mixed iron-oxide phase, for instance, LMRs/SMRs; whereas a higher one results in a pure single-phase cubic Fe3O4structure (MDs) The line shape of the Fe2p region using the multiplets splitting model suggests that Fe3O4 is mainly present at the surface as validated through Mossbauer spectroscopy. Magnetization measurements revealed an alteration of the Verwey transition from LMRs/SMRs to MDs. Further, these microstructures were examined for their efficiencies in adjusting the hyperthermia response, with specific absorption rates peaking from 2.8 to 3.4 W/g and are noticeably dominated by the shape anisotropy.http://www.sciencedirect.com/science/article/pii/S2211715625000499Iron Oxide microparticlesVerwey TransitionStoichiometryMössbauer spectroscopyMagneto-hyperthermia. |
| spellingShingle | Gopal Niraula Jose A.H. Coaquira Edgar Obed Pérez Reyes Yasir Javed Edilso Reguera Joel Garcia Surender Kumar Sharma Hydrothermally synthesized Fe3O4 microparticles: Structural, magnetic, Mössbauer and magneto-hyperthermia properties Results in Chemistry Iron Oxide microparticles Verwey Transition Stoichiometry Mössbauer spectroscopy Magneto-hyperthermia. |
| title | Hydrothermally synthesized Fe3O4 microparticles: Structural, magnetic, Mössbauer and magneto-hyperthermia properties |
| title_full | Hydrothermally synthesized Fe3O4 microparticles: Structural, magnetic, Mössbauer and magneto-hyperthermia properties |
| title_fullStr | Hydrothermally synthesized Fe3O4 microparticles: Structural, magnetic, Mössbauer and magneto-hyperthermia properties |
| title_full_unstemmed | Hydrothermally synthesized Fe3O4 microparticles: Structural, magnetic, Mössbauer and magneto-hyperthermia properties |
| title_short | Hydrothermally synthesized Fe3O4 microparticles: Structural, magnetic, Mössbauer and magneto-hyperthermia properties |
| title_sort | hydrothermally synthesized fe3o4 microparticles structural magnetic mossbauer and magneto hyperthermia properties |
| topic | Iron Oxide microparticles Verwey Transition Stoichiometry Mössbauer spectroscopy Magneto-hyperthermia. |
| url | http://www.sciencedirect.com/science/article/pii/S2211715625000499 |
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