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Abstrakt
The removal of norfloxacin (NOR), a widely used pharmaceutical and emerging water pollutant, was studied using UV-C and Fe2+ catalyzed peroxides-based oxidative processes (e.g., UV-C/Fe2+/H2O2, UV-C/Fe2+/S2O82− and UV-C/Fe2+/HSO5−) and compared with UV-C and UV-C/Fe2+. The UV-C and UV-C/Fe2+ degraded NOR to 38 and 55 %. However, use of peroxides, i.e., H2O2, S2O82−, HSO5− with UV-C and UV-C/Fe2+ promoted NOR %degradation to 75, 83, and 90 % using [peroxides]0 = 50 mg/L, [Fe2+]0 = 1 mg/L, and [NOR]0 = 10 mg/L, respectively. The significant impact of peroxides on NOR degradation was due to their decomposition into ●OH and SO4●− which showed high activity towards NOR degradation. The ●OH and SO4●− formation from peroxides decomposition and their contribution in NOR degradation was verified by different scavenger studies. Among the UV-C/Fe2+/peroxides processes, UV-C/Fe2+/HSO5− showed better performance. The changing concentrations of peroxides, Fe2+, and NOR affected degradation of NOR. The use of different pH and inorganic anions also influenced NOR degradation. The degradation pathways of NOR were established and analyzed acute as well as chronic toxicities of NOR and its DPs.
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Autorzy (10)
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Faiza Rehman
- Department of Chemistry, The University of Poonch Rawalakot, Azad Kashmir, Pakistan
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Nazish Parveen
- Department of Chemistry, The University of Poonch Rawalakot, Azad Kashmir, Pakistan
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Jibran Iqbal
- College of Natural and Health Sciences, Zayed University, P.O. Box 144534, Abu Dhabi, United Arab Emirates
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Murtaza Sayed
- Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
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Noor S. Shah
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus 6100, Pakistan
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Sabah Ansar
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia
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Javed Ali
- Department of Chemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
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Afzal Shah
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
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Farrukh Jamil
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Raiwind Road, Lahore 54000, Pakistan
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
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JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
nr 435,
ISSN: 1010-6030 - Język:
- angielski
- Rok wydania:
- 2023
- Opis bibliograficzny:
- Rehman F., Parveen N., Iqbal J., Sayed M., Shah N. S., Ansar S., Ali J., Shah A., Jamil F., Boczkaj G.: Potential degradation of norfloxacin using UV-C/Fe2+/peroxides-based oxidative pathways// JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY -Vol. 435, (2023), s.114305-
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.jphotochem.2022.114305
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 362 razy
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