Decoration of 0D Bi 3 NbO 7 nanoparticles onto 2D BiOIO 3 nanosheets as visible-light responsive S-scheme photocatalyst for photo-oxidation of antibiotics in wastewater.

Autor: Graimed BH; Environmental Engineering Department, College of Engineering, University of Baghdad, Baghdad, Iraq., Jabbar ZH; Building and Construction Techniques Engineering Department, Al-Mustaqbal University College, 51001 Hillah, Babylon, Iraq. Electronic address: z.jabbar1011@coeng.uobaghdad.edu.iq., Alsunbuli MM; Architecture Engineering Department, College of Engineering, University of Baghdad, Baghdad, Iraq., Ammar SH; Department of Chemical Engineering, College of Engineering, Al-Nahrain University, Jadriya, Baghdad, Iraq; College of Engineering, University of Warith Al-Anbiyaa, Karbala, Iraq., G Taher A; Ministry of Oil, Oil Pipelines Company, Daura, Baghdad, Iraq.
Jazyk: angličtina
Zdroj: Environmental research [Environ Res] 2024 Feb 15; Vol. 243, pp. 117854. Date of Electronic Publication: 2023 Dec 07.
DOI: 10.1016/j.envres.2023.117854
Abstrakt: In this work, a new S-type hybrid composed of 2D BiOIO 3 and 0D Bi 3 NbO 7 was proposed and hybridized by a facile self-assembly strategy. The developed nanomaterials were characterized and identified by a series of sophisticated analyses, like XRD, SEM, EIS, XPS, PL, UPS, EDS, BET, M-S, TEM, HRTEM, and DRS. The photocatalytic behavior of BiOIO 3 /Bi 3 NbO 7 was examined and optimized against amoxicillin (AMX) and other types of antibiotics under a variety of environmental conditions, such as visible light (150 W LED), direct sunlight, pH (3-11), catalyst dosages (20-80 mg), humic acid (0-24 mg/L), AMX concentration (10-40 mg/L), and different inorganic ions (0.05 M). The optimized BiOIO 3 /Bi 3 NbO 7 hybrid attained exceptional AMX degradation activity (96.5%) under visible light (60 min), with a reaction constant of up to 0.04559 min -1 , exceeding bare BiOIO 3 and Bi 3 NbO 7 by 5.57 and 5.3 folds, respectively. The obtained BiOIO 3 /Bi 3 NbO 7 hybrid unclosed expanded light utilization behavior compared with neat catalysts, which originates from the powerful incorporation between BiOIO 3 and Bi 3 NbO 7 in the S-type system. The radical investigations confirmed the superiority of BiOIO 3 /Bi 3 NbO 7 in generating both • OH and • O 2 - during the photoreaction. The novel Bi 3 NbO 7 -based heterojunction afforded robust photostability in five treatment cycles and simple charge transfer activity in the S-type route, boosting the photo-mechanism for antibiotic degradation in an efficient manner. The building of the S-scheme heterojunction between BiOIO 3 and Bi 3 NbO 7 stimulates the utilization of holes by the recombination process and promotes the overall stability of the composite. Our study introduces a new class of semiconductor heterojunctions that may contribute to the development potential of the photocatalysis sector in wastewater treatment.
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 © 2023 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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