| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Abdelmoula, Mustapha
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2019Starch functionalized magnetite nanoparticles: New insight into the structural and magnetic propertiescitations
- 2019Starch functionalized magnetite nanoparticles: New insight into the structural and magnetic propertiescitations
- 2019Structure of single sheet iron oxides produced from surfactant interlayered green rustscitations
- 2018Abiotically or microbially mediated transformations of magnetite by sulphide species: The unforeseen role of nitrate-reducing bacteriacitations
- 2017Shale Of The Ivory Coast As A Filtration Material For Phosphate Removal From Waste Water
- 2017Biogenic Mineral Precipitation during Antimony bearing Ferrihydrite bioreduction
- 2012Application of magnetite catalyzed chemical oxidation (Fenton-like and persulfate) for the remediation of oil hydrocarbon contaminationcitations
- 2010In situ oxidation of green rusts by deprotonation; wet corrosion and passivation of weathering steelscitations
- 2009Arsenite sequestration at the surface of nano-Fe(OH)2, ferrous-carbonate hydroxide, and green-rust after bioreduction of arsenic-sorbed lepidocrocite by Shewanella putrefacienscitations
- 2009Arsenite sequestration at the surface of nano-Fe(OH)2, ferrous-carbonate hydroxide, and green-rust after bioreduction of arsenic-sorbed lepidocrocite by Shewanella putrefacienscitations
- 2008Aluminium substitution in iron(II–III)-layered double hydroxides: Formation and cationic ordercitations
- 2008Comparative studies of ferric green rust and ferrihydrite coated sand: Role of synthesis routescitations
Places of action
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article
Starch functionalized magnetite nanoparticles: New insight into the structural and magnetic properties
Abstract
International audience ; In this study we report the preparation of starch-functionalized magnetic nanoparticles (Starch@MNPs) by the oxidation-precipitation method of iron (II). Special attention was devoted to the characterization of the modification of structural and magnetic properties depending on the starch to iron mass ratio R. Transmission electron microscopy (TEM), powder X-ray diffraction (PXRD), Raman, Mössbauer, Fourier transform infrared (FTIR), X-ray photoelectron spectroscopies (XPS) and thermogravimetric analysis (TGA) were used to carefully characterize and compare the as-synthesized products. TEM and PXRD revealed the reduction of the crystallite size as R increases. The size varies from 67 ± 5 to 12 ± 4 nm by changing R from 0 to 10. The formation of a cubic inverse spinel iron oxide phase was demonstrated by PXRD and the discrimination between magnetite Fe3O4 and maghemite Fe2O3 was realized by Raman and Mössbauer spectroscopy. Mössbauer spectroscopy allowed to monitor the evolution of the magnetic properties with respect to R. The superparamagnetic behaviour was evidenced by the appearance of a doublet in the Mössbauer spectra that strongly increased in intensity with R ratio. The relative abundance (RA) of the doublet at room temperature was observed to increase from 10 to 36% for R equal 1 to 10. Lastly, the iron environment was highly perturbed by the presence of starch.