Manganese oxide catalytic materials for degradation of organic pollutants in advanced oxidation processes: A review

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 66, P. 106048 - 106048

Published: Aug. 28, 2024

Language: Английский

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Application of machine learning strategies in screening transition metal oxide based ozonation catalysts for BAA degradation

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 71, P. 107411 - 107411

Published: March 1, 2025

Language: Английский

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Effective degradation of quinoline by catalytic ozonation with MnCexOy catalysts: performance and mechanism

Water Science & Technology, Journal Year: 2024, Volume and Issue: 89(3), P. 823 - 837

Published: Jan. 29, 2024

Abstract Quinoline inevitably remains in the effluent of coking wastewater treatment plants due to its bio-refractory nature, which might cause unfavorable effects on human and ecological environments. In this study, MnCexOy was consciously synthesized by α-MnO2 doped with Ce3+ (Ce:Mn = 1:10) employed as ozonation catalyst for quinoline degradation. After that, removal efficiency mechanism were systematically analyzed characterizing physicochemical properties MnCexOy, investigating free radicals monitoring solution pH. Results indicated that rate greatly improved prepared catalyst. Specifically, efficiencies could be 93.73, 62.57 43.76%, corresponding single systems, respectively. The radical scavenging tests demonstrated •OH •O2- dominant reactive oxygen species system. Meanwhile, contribution levels degradation about 42 35%, abundant surface hydroxyl groups vacancies two important factors decomposing molecular O3 into more •O2-. This study provide scientific support application MnCexOy/O3 system degrading bio-treated wastewater.

Language: Английский

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Advanced treatment of landfill leachate by catalytic ozonation with MnCeOx/γ-Al2O3 catalyst

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 46, P. 104113 - 104113

Published: Feb. 25, 2024

Language: Английский

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Efficient catalytic ozonation of 4-chloro-3-methylphenol by Mn-Cu/Al2O3: Performance, mechanism, and degradation pathways

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 71, P. 107325 - 107325

Published: Feb. 22, 2025

Language: Английский

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Catalytic ozonation of coal chemical wastewater using AlOOH-Immobilized phosphotungstic acid

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116310 - 116310

Published: March 1, 2025

Language: Английский

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Degradation of quinoline by ozone oxidation using Fe3Ce2/NaY catalyst

Microporous and Mesoporous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 113630 - 113630

Published: April 1, 2025

Language: Английский

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Enhanced ozonation of vanillin catalyzed by highly efficient magnetic MnFe₂O₄/ZIF‐67 catalysts: Synergistic effects and mechanism insights

Water Environment Research, Journal Year: 2024, Volume and Issue: 96(4)

Published: April 1, 2024

Abstract In this study, we synthesized magnetic MnFe 2 O 4 /ZIF‐67 composite catalysts using a straightforward method, yielding that exhibited outstanding performance in catalyzing the ozonation of vanillin. This exceptional catalytic efficiency arose from synergistic interplay between and ZIF‐67. Comprehensive characterization via x‐ray photoelectron spectroscopy (XPS), diffraction (XRD), Fourier transform infrared spectrometer (FT‐IR), Brunauer–Emmett–Teller (BET), field emission scanning electron microscopy (FE‐SEM), energy dispersive (EDS) confirmed incorporation promoted creation oxygen vacancies, resulting an increased presence l adsorbed (O ads ) generation additional ·OH groups on catalyst surface. Utilizing ZIF‐67 as carrier markedly enhanced specific surface area catalyst, augmenting exposure active sites, thus improving degradation reducing consumption. The effects different experimental parameters (catalyst type, initial vanillin concentration, ozone dosage, pH value, dosage) were also investigated, optimal (300 mg/L1.0‐MnFe /ZIF‐67, concentration = 250 mg/L, 3 12 mg/min, 7) obtained. removal was 74.95% to 99.54% after 30 min reaction, separation easy be recycled stable, only decreased by about 8.92% 5 cycles. Additionally, delved into mechanism through kinetic fitting, reactive quenching experiments, transfer analysis. multifaceted approach provides comprehensive understanding process catalyzed catalysts, shedding light their potential applications advanced oxidation processes. Practitioner Points A stable recyclable simple method. effect comprehensively analyzed discussed. model for introduced, providing valuable insights reaction dynamics.

Language: Английский

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Preparation of Mn-Ce oxide-loaded Al2O3 by citric acid-assisted impregnation for enhanced catalytic ozonation degradation of dye wastewater

Chinese Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

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Efficacious degradation of ethylene glycol in baffled ozonation reactor in the presence of waste-derived MIL-53(Al/Fe)-metal-organic framework derived Al2O3/Fe3O4

Journal of environmental chemical engineering, Journal Year: 2023, Volume and Issue: 11(5), P. 110754 - 110754

Published: Aug. 12, 2023

Language: Английский

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