In Situ and Partial In Situ Synthesis of Cellulose Magnetite/Maghemite Composites
The current study aims to prepare ferromagnetic iron oxides (magnetite and/or maghemite) using the coprecipitation method of an iron salt in a basic environment stimulated by ultrasound, with cellulose added at the start of the synthesis and after 15 min in order to perform an in situ and partial in...
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| Format: | Article |
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MDPI AG
2025-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/2/492 |
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| author | Razvan Rotaru Maria Emiliana Fortună Elena Ungureanu Ovidiu Ungureanu Andrei Dascalu Valeria Harabagiu |
| author_facet | Razvan Rotaru Maria Emiliana Fortună Elena Ungureanu Ovidiu Ungureanu Andrei Dascalu Valeria Harabagiu |
| author_sort | Razvan Rotaru |
| collection | DOAJ |
| description | The current study aims to prepare ferromagnetic iron oxides (magnetite and/or maghemite) using the coprecipitation method of an iron salt in a basic environment stimulated by ultrasound, with cellulose added at the start of the synthesis and after 15 min in order to perform an in situ and partial in situ synthesis. The structures, morphology, and properties of composites are analyzed by IR, XRD, SEM, TEM, TGA, DSC, and magnetic measurements. The cumulative effect of the ultrasonic waves is observed by a reduction in the degree of crystallinity of the native cellulose compared to the composites (from 73.2 to 36.4, respectively 38.3). The vibrating sample magnetic measurement shows a single hysteresis curve characteristic of ferromagnetic materials with superparamagnetic properties. |
| format | Article |
| id | doaj-art-05a0686bf4d148798551f0336a881d2d |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-05a0686bf4d148798551f0336a881d2d2025-01-24T13:19:33ZengMDPI AGApplied Sciences2076-34172025-01-0115249210.3390/app15020492In Situ and Partial In Situ Synthesis of Cellulose Magnetite/Maghemite CompositesRazvan Rotaru0Maria Emiliana Fortună1Elena Ungureanu2Ovidiu Ungureanu3Andrei Dascalu4Valeria Harabagiu5“Petru Poni” Institute of Macromolecular Chemistry, Department of Inorganic Polymers, 41A Gr. Ghica Voda Alley, 700487 Iasi, Romania“Petru Poni” Institute of Macromolecular Chemistry, Department of Inorganic Polymers, 41A Gr. Ghica Voda Alley, 700487 Iasi, RomaniaDepartment of Exact Sciences, “Ion Ionescu de la Brad” Iasi University of Life Sciences, 3 Mihail Sadoveanu Alley, 700490 Iasi, RomaniaDepartment of Biology and Life Sciences, “Vasile Goldis” Western University of Arad, 94 the Boulevard of the Revolution, 310025 Arad, Romania“Petru Poni” Institute of Macromolecular Chemistry, Department of Inorganic Polymers, 41A Gr. Ghica Voda Alley, 700487 Iasi, Romania“Petru Poni” Institute of Macromolecular Chemistry, Department of Inorganic Polymers, 41A Gr. Ghica Voda Alley, 700487 Iasi, RomaniaThe current study aims to prepare ferromagnetic iron oxides (magnetite and/or maghemite) using the coprecipitation method of an iron salt in a basic environment stimulated by ultrasound, with cellulose added at the start of the synthesis and after 15 min in order to perform an in situ and partial in situ synthesis. The structures, morphology, and properties of composites are analyzed by IR, XRD, SEM, TEM, TGA, DSC, and magnetic measurements. The cumulative effect of the ultrasonic waves is observed by a reduction in the degree of crystallinity of the native cellulose compared to the composites (from 73.2 to 36.4, respectively 38.3). The vibrating sample magnetic measurement shows a single hysteresis curve characteristic of ferromagnetic materials with superparamagnetic properties.https://www.mdpi.com/2076-3417/15/2/492cellulosecompositesmaghemitemagnetitemagnetic propertiesultrasonication |
| spellingShingle | Razvan Rotaru Maria Emiliana Fortună Elena Ungureanu Ovidiu Ungureanu Andrei Dascalu Valeria Harabagiu In Situ and Partial In Situ Synthesis of Cellulose Magnetite/Maghemite Composites Applied Sciences cellulose composites maghemite magnetite magnetic properties ultrasonication |
| title | In Situ and Partial In Situ Synthesis of Cellulose Magnetite/Maghemite Composites |
| title_full | In Situ and Partial In Situ Synthesis of Cellulose Magnetite/Maghemite Composites |
| title_fullStr | In Situ and Partial In Situ Synthesis of Cellulose Magnetite/Maghemite Composites |
| title_full_unstemmed | In Situ and Partial In Situ Synthesis of Cellulose Magnetite/Maghemite Composites |
| title_short | In Situ and Partial In Situ Synthesis of Cellulose Magnetite/Maghemite Composites |
| title_sort | in situ and partial in situ synthesis of cellulose magnetite maghemite composites |
| topic | cellulose composites maghemite magnetite magnetic properties ultrasonication |
| url | https://www.mdpi.com/2076-3417/15/2/492 |
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