Visible-light driven excellent photocatalytic degradation of ofloxacin antibiotic using BiFeO 3 nanoparticles.

Autor: Gupta G; Dr. SSB University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh, India., Kansal SK; Dr. SSB University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh, India. Electronic address: sushilkk1@yahoo.co.in., Umar A; Department of Chemistry, Faculty of Science and Arts, And Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Saudi Arabia; Department of Materials Science and Engineering, The Ohio State University, Columbus, 43210 OH, USA. Electronic address: ahmadumar786@gmail.com., Akbar S; Department of Materials Science and Engineering, The Ohio State University, Columbus, 43210 OH, USA.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2023 Feb; Vol. 314, pp. 137611. Date of Electronic Publication: 2022 Dec 21.
DOI: 10.1016/j.chemosphere.2022.137611
Abstrakt: The extensive exploration of multiferroic materials for degradation of contaminants and environmental remediation is promptly strengthened because of their distinct applications. BiFeO 3 , a prominent class of multiferroics, have received immense attention in recent times. Present study reports the synthesis of a highly crystalline BiFeO 3 via facile combustion method. The prepared catalyst was characterized using different techniques like XRD, FTIR, FESEM, EDS, XPS, DRS and PL. From DRS results, the energy band gap of BiFeO 3 was computed as 2.1 eV which was suitable enough for its exploration as a visible light photocatalyst. Therefore, BiFeO 3 was efficiently utilized for the degradation of ofloxacin drug under the exposure of visible light. The obtained results depicted 80% ofloxacin degradation under optimized conditions (pH 8, 0.5 g/L catalyst dose and 10 mg/L drug concentration) in 180 min. Pseudo first order kinetics was followed with rate constant 0.0097 min -1 , as inferred from the kinetic studies. Furthermore, 64% TOC reduction was attained by utilizing the prepared catalyst under optimum conditions. Additionally, the photocatalytic experiments showed excellent degradation efficiency even after five cycles which demonstrated good stability of the fabricated catalyst.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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