Synthesis of 3D Sb 2 O 3 -based heterojunction reinforced by SPR effect and photo-Fenton mechanism for upgraded oxidation of metronidazole in water environments.

Autor: Jabbar ZH; Building and Construction Techniques Engineering Department, Al-Mustaqbal University College, 51001, Hillah, Babylon, Iraq. Electronic address: zaid.hazim@uomus.edu.iq., Graimed BH; Environmental Engineering Department, College of Engineering, University of Baghdad, Baghdad, Iraq., Okab AA; Civil Engineering Department, College of Engineering, Al-Qasim Green University, Babylon, 51013, Iraq. Electronic address: ayahabed1990@wrec.uoqasim.edu.iq., 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., Taofeeq H; Department of Chemical Engineering, College of Engineering, Al-Nahrain University, Jadriya, Baghdad, Iraq; Multiphase Flow and Reactors Engineering & Education Laboratory (mFReel), Linda and Bipin Doshi Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, MO, 65409, USA; Linda and Bipin Doshi Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, MO, 65409, USA., Al-Yasiri M; Department of Chemical Engineering and Petroleum Industries, Al-Amarah University College, Iraq.
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2024 Jun; Vol. 362, pp. 121347. Date of Electronic Publication: 2024 Jun 04.
DOI: 10.1016/j.jenvman.2024.121347
Abstrakt: The traditional homogenous and heterogenous Fenton reactions have frequently been restrained by the lower production of Fe 2+ ions, which significantly obstructs the generation of hydroxyl radicals from the decomposition of H 2 O 2 . Thus, we introduce novel photo-Fenton-assisted plasmonic heterojunctions by immobilizing Fe 3 O 4 and Bi nanoparticles onto 3D Sb 2 O 3 via co-precipitation and solvothermal approaches. The ternary Sb 2 O 3 /Fe 3 O 4 /Bi composites offered boosted photo-Fenton behavior with a metronidazole (MNZ) oxidation efficiency of 92% within 60 min. Among all composites, the Sb 2 O 3 /Fe 3 O 4 /Bi-5% hybrid exhibited an optimum photo-Fenton MNZ reaction constant of 0.03682 min - 1 , which is 5.03 and 2.39 times higher than pure Sb 2 O 3 and Sb 2 O 3 /Fe 3 O 4 , respectively. The upgraded oxidation activity was connected to the complementary outcomes between the photo-Fenton behavior of Sb 2 O 3 /Fe 3 O 4 and the plasmonic effect of Bi NPs. The regular assembly of Fe 3 O 4 and Bi NPs enhances the surface area and stability of Sb 2 O 3 /Fe 3 O 4 /Bi. Moreover, the limited absorption spectra of Sb 2 O 3 were extended into solar radiation by the Fe 3+ defect of Fe 3 O 4 NPs and the surface plasmon resonance (SPR) effect of Bi NPs. The photo-Fenton mechanism suggests that the co-existence of Fe 3 O 4 /Bi NPs acts as electron acceptor/donor, respectively, which reduces recombination losses, prolongs the lifetime of photocarriers, and produces more reactive species, stimulating the overall photo-Fenton reactions. On the other hand, the photo-Fenton activity of MNZ antibiotics was optimized under different experimental conditions, including catalyst loading, solution pH, initial MNZ concentrations, anions, and real water environments. Besides, the trapping outcomes verified the vital participation of • OH, h + , and • O 2 - in the MNZ destruction over Sb 2 O 3 /Fe 3 O 4 /Bi-5%. In summary, this work excites novel perspectives in developing boosted photosystems through integrating the photocatalysis power with both Fenton reactions and the SPR effects of plasmonic materials.
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 © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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