The role of starch in nano-magnetite formation: A spectrometric and structural investigation - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Materials Chemistry and Physics Année : 2023

The role of starch in nano-magnetite formation: A spectrometric and structural investigation

Résumé

In the framework of pollutant sequestration by magnetic nano materials, this work focuses on the synthesis and the physico-chemical properties of starch functionalized nano magnetites. Nanoparticles were prepared by the Fe 2+ /Fe 3+ coprecipitation method with increasing amount of starch in the synthesis medium (starch to iron mass ratio (R) in the range 0-10). Obtained materials were characterized by Transmission Electron Microscopy (TEM), Powder X-Ray Diffraction (PXRD), Raman, Fourier Transform Infrared (FTIR) and 57 Fe Mössbauer spectroscopies, as well as by vibrating sample magnetometry. The presence of starch into the synthesis medium lowers magnetite crystallinity and increases the dispersion of the oxide particles. Both effects lead to fast relaxing superparamagnetic particles at RT for high R. The role of starch on nano-magnetite growth and stabilization is evidenced.
Fichier principal
Vignette du fichier
V final with modif.pdf (851.19 Ko) Télécharger le fichier
SI final.pdf (165.57 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Licence : CC BY NC ND - Paternité - Pas d'utilisation commerciale - Pas de modification
Licence : CC BY NC ND - Paternité - Pas d'utilisation commerciale - Pas de modification

Dates et versions

hal-03937318 , version 1 (13-01-2023)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Mbolantenaina Rakotomalala Robinson, Mustapha Abdelmoula, Martine Mallet, Romain Coustel. The role of starch in nano-magnetite formation: A spectrometric and structural investigation. Materials Chemistry and Physics, inPress, 297, pp.127285. ⟨10.1016/j.matchemphys.2022.127285⟩. ⟨hal-03937318⟩
17 Consultations
46 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More