Oil shale powders and their interactions with ciprofloxacin, ofloxacin, and oxytetracycline antibiotics

Asmae Gouza 1 Sanaa Saoiabi 1 Miloud El Karbane 2 Sylvie Masse 3 Guillaume Laurent 4 Ahmed Rami 2 Ahmed Saoiabi 1 Abdelaziz Laghzizil 1 Thibaud Coradin 3
1 Laboratoire de Chimie physique Générale
2 Laboratoire National de Contrôle des Médicaments
3 MATBIO - Matériaux et Biologie
LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris
4 SMiLES - Spectroscopie, Modélisation, Interfaces pour L'Environnement et la Santé
LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris
Abstract : The interaction of oil shale, as a widespread sedimentary rock, with common antibiotics ofloxacine, oxytetracycline, and ciprofloxacine was studied. The selected Moroccan deposit and its thermally treated forms were fully characterized from a chemical and structural point of view, indicating the prevalence of quartz as a mineral component together with aluminum- and iron-rich phase that are converted into Al-doped iron oxide phases upon heating. The presence of 4 wt% organics was also detected, which was removed at 550 °C without significant loss of specific surface area. The pseudo-second-order kinetic model and Langmuir equation were found the most adequate to reproduce the kinetics and isothermal sorption experiments. These analyses enlighten the contribution of the organic matter on antibiotic retention as well as the key role of hydrophobic interactions on the molecule-mineral surface interactions. Our results emphasize the possible contribution of raw oil shale in the accumulation of antibiotics in soils and suggest that thermally treated oil shell powders can constitute cheap mineral sorbents for environmental cleaning.
Keywords : Mineral sorbents Solid state NMR Retention Oil shale Antibiotics Quartz
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Article dans une revue
Environmental Science and Pollution Research, Springer Verlag, 2017, 2017 (24), pp.25977-25985 〈10.1007/s11356-017-0100-5〉
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Asmae Gouza, Sanaa Saoiabi, Miloud El Karbane, Sylvie Masse, Guillaume Laurent, et al.. Oil shale powders and their interactions with ciprofloxacin, ofloxacin, and oxytetracycline antibiotics. Environmental Science and Pollution Research, Springer Verlag, 2017, 2017 (24), pp.25977-25985 〈10.1007/s11356-017-0100-5〉. 〈hal-01613976〉

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