Nano-sized iron oxides supported on polyester textile to remove fluoroquinolones in hospital wastewater
| Autor: | Gnougon Nina Coulibaly, Sami Rtimi, Khalil Hanna, Aymen Amine Assadi |
|---|---|
| Přispěvatelé: | Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Ecole Polytechnique Fédérale de Lausanne (EPFL), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Ministere de l'Enseignement Superieur et de la Recherche Scientifique of Ivory Coast, Institut Universitaire de France, EPFL-IMX-LTP, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials Science (miscellaneous)
induced degradation 02 engineering and technology 010501 environmental sciences hydrogen-atoms 01 natural sciences Redox antibiotics peroxymonosulfate activation Reaction rate constant [CHIM]Chemical Sciences Organic matter persulfate Thin film 0105 earth and related environmental sciences General Environmental Science chemistry.chemical_classification hydroxyl radicals humic-acid Sputter deposition 021001 nanoscience & nanotechnology 6. Clean water rate constants Polyester chemistry Wastewater sulfate radicals High-power impulse magnetron sputtering 0210 nano-technology hydrated electrons Nuclear chemistry |
| Zdroj: | Environmental science.Nano Environmental science.Nano, Royal Society of Chemistry, 2020, 7 (7), pp.2156-2165. ⟨10.1039/d0en00261e⟩ Environmental science.Nano, 2020, 7 (7), pp.2156-2165. ⟨10.1039/d0en00261e⟩ |
| ISSN: | 2051-8153 |
| DOI: | 10.1039/d0en00261e⟩ |
| Popis: | International audience; In this study, we examined the removal kinetics of two fluoroquinolones (FQs), flumequine (FLU) and ciprofloxacin (CIP), in synthetic wastewater (SWW) and real hospital wastewater (RHW) using FeOx thin films, peroxymonosulfate (PMS) and visible light. Nano-sized iron oxides (FeOx) supported on polyester textile (PES) were synthesized by a novel high-power impulse magnetron sputtering (HiPIMS) method. The O-2/Ar ratio is an important factor to tune Fe oxidation, which controls the composition of the thin film and thus the capability of the resulting FeOx for PMS activation. Based on scavenging experiments, sulfate radicals were shown to be predominantly involved in the heterogeneous oxidation reaction. Competitive effects with reactive species could explain the lower degradation rate constants in mixtures relative to those in single systems. In contrast to chlorides, organic matter, sulfates and phosphates commonly found in RHW dramatically decreased the removal performance of both target compounds, FLU and CIP. However, increasing the PMS concentration to 3 mM improved considerably the degradation and mineralization, even in real wastewater. The good stability and reusability of the FeOx/PES material have been confirmed in hospital wastewater over five successive oxidation cycles. |
| Databáze: | OpenAIRE |
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