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- W4206996934 endingPage "134850" @default.
- W4206996934 startingPage "134850" @default.
- W4206996934 abstract "Wüstite under simulated solar irradiation with addition of H2O2 was used to treat enrofloxacin and levofloxacin in water. Wüstite was characterized, showing 2.1 eV of bandgap and species of Fe3+ on the surface that favor its catalytic ability. The effect of light intensity, wüstite dose, concentration of H2O2, and pH on the removal of antimicrobial activity (AA, against S. aureus and E. coli), was tested, finding as suitable conditions: [intensity]: 500 W m−2, [wüstite]: 10 mg L-1, [H2O2]: 1.0 mmol L-1, and pH 6.5. Under such conditions, up to 100% of AA elimination occurred at 180 min of treatment. The Light-Wüstite-H2O2 system involved, the action of light, O2•−, 1O2, and HO•, where wüstite acted as a semiconductor and a catalyst for heterogeneous photo-Fenton. Furthermore, this system mineralized 21% of ENR, and the wüstite catalyst promoted 100% of AA removal up to the fourth reuse cycle. Interestingly, the application of Light-Wüstite-H2O2 to an actual effluent led to complete AA removal after 180 min treatment. The process action on ENR generated six stable products, exhibiting the loss of the fluorine atom (induced by light directly) and modifications on the ethyl-piperazyl group (reactive region according to calculations of atomic charge) by radical attacks. The relationship between the AA and structural transformations showed that those products that retained quinolone and piperazyl moieties had AA." @default.
- W4206996934 created "2022-01-26" @default.
- W4206996934 creator A5004275057 @default.
- W4206996934 creator A5017886849 @default.
- W4206996934 creator A5023694909 @default.
- W4206996934 creator A5023696811 @default.
- W4206996934 creator A5045212067 @default.
- W4206996934 creator A5046037105 @default.
- W4206996934 date "2022-05-01" @default.
- W4206996934 modified "2023-10-17" @default.
- W4206996934 title "Wüstite as a catalyst source for water remediation: Differentiated antimicrobial activity of by-products, action routes of the process, and transformation of fluoroquinolones" @default.
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- W4206996934 doi "https://doi.org/10.1016/j.cej.2022.134850" @default.