Spinel Iron Oxide by the Co-Precipitation Method: Effect of the Reaction Atmosphere
Synthesis atmosphere (i.e., air and nitrogen) effects on the physical properties and formation mechanism of spinel iron oxide nanoparticles prepared via the co-precipitation method have been investigated using a multi-technique approach. The obtained magnetic nanoparticles (MNPs) were characterized...
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MDPI AG
2021-06-01
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| Online Access: | https://www.mdpi.com/2076-3417/11/12/5433 |
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| author | Sawssen Slimani Carlo Meneghini Maryam Abdolrahimi Alessandro Talone Jean Pierre Miranda Murillo Gianni Barucca Nader Yaacoub Patrizia Imperatori Erzsébet Illés Mourad Smari Essebti Dhahri Davide Peddis |
| author_facet | Sawssen Slimani Carlo Meneghini Maryam Abdolrahimi Alessandro Talone Jean Pierre Miranda Murillo Gianni Barucca Nader Yaacoub Patrizia Imperatori Erzsébet Illés Mourad Smari Essebti Dhahri Davide Peddis |
| author_sort | Sawssen Slimani |
| collection | DOAJ |
| description | Synthesis atmosphere (i.e., air and nitrogen) effects on the physical properties and formation mechanism of spinel iron oxide nanoparticles prepared via the co-precipitation method have been investigated using a multi-technique approach. The obtained magnetic nanoparticles (MNPs) were characterized using the X-ray diffraction, transmission electron microscopy (TEM), SQUID magnetometry, Mössbauer spectroscopy and X-ray absorption near-edge Structure spectroscopy techniques. The synthesis procedure leads to the formation of a spinel structure with an average crystallite size of 9.0(9) nm. The morphology of the particles synthetized under an inert atmosphere was quasi-spherical, while the nanoparticles prepared in air present a faceted shape. The small differences observed in morphological properties are explained by the influence of the reaction atmosphere on the formation mechanism of the MNPs. The magnetic characterization indicates that both samples exhibit superparamagnetic behavior at 300 K. The investigation by means of the Langevin approach at 300 K also leads to equal values for the mean size of the magnetic cores (D<sub>m</sub>). Additionally, the analysis of the Mössbauer spectra revealed the lack of spin disorder for both samples, resulting in a high saturation magnetization. The fit of XANES spectrum suggests that about 2/3 of the iron ions reside in a local environment close to that of γ-Fe<sub>2</sub>O<sub>3</sub> and about 1/3 close to that of Fe<sub>3</sub>O<sub>4</sub> for the sample synthetized in inert atmosphere. |
| first_indexed | 2024-03-10T10:29:53Z |
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| language | English |
| last_indexed | 2024-03-10T10:29:53Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-05b53e4e07334824803f4855d28dbd152023-11-21T23:44:11ZengMDPI AGApplied Sciences2076-34172021-06-011112543310.3390/app11125433Spinel Iron Oxide by the Co-Precipitation Method: Effect of the Reaction AtmosphereSawssen Slimani0Carlo Meneghini1Maryam Abdolrahimi2Alessandro Talone3Jean Pierre Miranda Murillo4Gianni Barucca5Nader Yaacoub6Patrizia Imperatori7Erzsébet Illés8Mourad Smari9Essebti Dhahri10Davide Peddis11Dipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso 31, 16146 Genova, ItalyDepartment of Sciences, Roma Tre University of Rome, Via della Vasca Navale 84, 00146 Rome, ItalyIstituto di Struttura della Materia—Consiglio Nazionale delle Ricerche, via Salaria Km 29.300, 00015 Monterotondo Scalo (Rm), ItalyIstituto di Struttura della Materia—Consiglio Nazionale delle Ricerche, via Salaria Km 29.300, 00015 Monterotondo Scalo (Rm), ItalyDipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso 31, 16146 Genova, ItalyDipartimento SIMAU, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, ItalyLUNAM, Institut des Molécules et Matériaux du Mans CNRS UMR-6283, Université du Maine, F-72085 Le Mans, FranceIstituto di Struttura della Materia—Consiglio Nazionale delle Ricerche, via Salaria Km 29.300, 00015 Monterotondo Scalo (Rm), ItalyDepartment of Food Engineering, University of Szeged, Mars tér 5-7., H-6724 Szeged, HungaryLaboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, B.P. 1171, Sfax 3000, TunisiaLaboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, B.P. 1171, Sfax 3000, TunisiaDipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso 31, 16146 Genova, ItalySynthesis atmosphere (i.e., air and nitrogen) effects on the physical properties and formation mechanism of spinel iron oxide nanoparticles prepared via the co-precipitation method have been investigated using a multi-technique approach. The obtained magnetic nanoparticles (MNPs) were characterized using the X-ray diffraction, transmission electron microscopy (TEM), SQUID magnetometry, Mössbauer spectroscopy and X-ray absorption near-edge Structure spectroscopy techniques. The synthesis procedure leads to the formation of a spinel structure with an average crystallite size of 9.0(9) nm. The morphology of the particles synthetized under an inert atmosphere was quasi-spherical, while the nanoparticles prepared in air present a faceted shape. The small differences observed in morphological properties are explained by the influence of the reaction atmosphere on the formation mechanism of the MNPs. The magnetic characterization indicates that both samples exhibit superparamagnetic behavior at 300 K. The investigation by means of the Langevin approach at 300 K also leads to equal values for the mean size of the magnetic cores (D<sub>m</sub>). Additionally, the analysis of the Mössbauer spectra revealed the lack of spin disorder for both samples, resulting in a high saturation magnetization. The fit of XANES spectrum suggests that about 2/3 of the iron ions reside in a local environment close to that of γ-Fe<sub>2</sub>O<sub>3</sub> and about 1/3 close to that of Fe<sub>3</sub>O<sub>4</sub> for the sample synthetized in inert atmosphere.https://www.mdpi.com/2076-3417/11/12/5433reaction atmosphereco-precipitationformation mechanism |
| spellingShingle | Sawssen Slimani Carlo Meneghini Maryam Abdolrahimi Alessandro Talone Jean Pierre Miranda Murillo Gianni Barucca Nader Yaacoub Patrizia Imperatori Erzsébet Illés Mourad Smari Essebti Dhahri Davide Peddis Spinel Iron Oxide by the Co-Precipitation Method: Effect of the Reaction Atmosphere Applied Sciences reaction atmosphere co-precipitation formation mechanism |
| title | Spinel Iron Oxide by the Co-Precipitation Method: Effect of the Reaction Atmosphere |
| title_full | Spinel Iron Oxide by the Co-Precipitation Method: Effect of the Reaction Atmosphere |
| title_fullStr | Spinel Iron Oxide by the Co-Precipitation Method: Effect of the Reaction Atmosphere |
| title_full_unstemmed | Spinel Iron Oxide by the Co-Precipitation Method: Effect of the Reaction Atmosphere |
| title_short | Spinel Iron Oxide by the Co-Precipitation Method: Effect of the Reaction Atmosphere |
| title_sort | spinel iron oxide by the co precipitation method effect of the reaction atmosphere |
| topic | reaction atmosphere co-precipitation formation mechanism |
| url | https://www.mdpi.com/2076-3417/11/12/5433 |
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