Accelerating Fe(III)/Fe(II) redox cycling in heterogeneous electro-Fenton process via S/Cu-mediated electron donor-shuttle regime

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 342, P. 123457 - 123457

Published: Nov. 1, 2023

In this study, we developed a Cu0.5Fe2.5S4 nanocatalyst through facile sulfidation of the Cu-MIL-88B(Fe) precursor to expedite surface Fe(III) reduction and enhance H2O2 activation in heterogeneous electro-Fenton (HEF). The as-prepared catalyst possesses relatively large specific area uniformly dispersed metal active sites. catalyzed HEF system allowed compete removal naproxen with minimal leaching, surpassing that or Fe3S4. Quantitative XPS analysis, electrochemical characterization density functional theory calculations elucidate an electron donor-shuttle regime S2- Cu species serve as donor shuttle, respectively. significantly accelerate internal transfer between S Fe mitigate dissolution adjacent iron sites, securing sustainable reducing capacity. Moreover, Cu0.5Fe2.5S4-based exhibits great practicability for treatment various organics urban wastewater. This study opens new avenue addressing challenge sluggish Fe(III)/Fe(II) cycling HEF.

Language: Английский

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The differences in heterogeneous Fenton catalytic performance and mechanism of various iron minerals and their influencing factors: A review

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 325, P. 124702 - 124702

Published: Aug. 1, 2023

Language: Английский

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Heterogeneous activation of peroxymonosulfate by natural chalcopyrite for degradation of ammonium dibutyl dithiophosphate from mineral processing wastewater

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 341, P. 126741 - 126741

Published: Feb. 11, 2024

Language: Английский

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Catalytic Applications of Natural Iron Oxides and Hydroxides: A Review

Catalysts, Journal Year: 2025, Volume and Issue: 15(3), P. 236 - 236

Published: Feb. 28, 2025

Iron oxides and hydroxides (Fe-OH) extracted from natural sources have garnered significant attention for their diverse catalytic applications. This article provides a comprehensive overview of the potential naturally occurring Fe-OH, focusing on influence preparation methods morphological characteristics application in heterogeneous catalysis. The unique physicochemical properties these catalysts, including high surface area, redox activity, tunable chemistry, make them promising candidates various processes. review discusses key reactions facilitated by such as advanced oxidation processes (AOPs), electrochemical applications, cracking, biodiesel production. Furthermore, it highlights recent advancements challenges utilizing materials catalysts. By presenting an analysis iron oxides, this aims to stimulate further research about use materials, which are widely distributed Earth’s crust.

Language: Английский

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Degradation of residual xanthate in flotation tailing wastewater by activated H2O2 with natural ilmenite: A heterogeneous fenton-like reaction catalyzed at natural pH

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 332, P. 125819 - 125819

Published: Nov. 27, 2023

Language: Английский

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Single-atom catalysts-based Fenton-like processes for water contaminant management: a review

Surfaces and Interfaces, Journal Year: 2023, Volume and Issue: 43, P. 103553 - 103553

Published: Oct. 27, 2023

Language: Английский

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Fe3O4 derived from the decomposition of siderite as a heterogeneous photocatalyst to degrade 2,4-dichlorophenol via activating PMS

Journal of Water Process Engineering, Journal Year: 2023, Volume and Issue: 57, P. 104538 - 104538

Published: Dec. 15, 2023

Language: Английский

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Perspectives on sustainable process control optimization through reusability of non-regenerated Fenton sludge in landfill leachate treatment

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 60, P. 105205 - 105205

Published: March 29, 2024

Language: Английский

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Fenton and Fenton-like-based advanced oxidation processes

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 171 - 203

Published: Jan. 1, 2025

Language: Английский

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Chitosan/Polyvinyl Alcohol/g-C3N4 Nanocomposite Film: An Efficient Visible Light-Responsive Photocatalyst and Antimicrobial Agent

Processes, Journal Year: 2025, Volume and Issue: 13(1), P. 229 - 229

Published: Jan. 15, 2025

Biopolymer-based nanocomposite film is an efficient material for addressing the increasing levels of pollutants in environment and also production antimicrobial packing due to its good film-forming properties, biodegradability, minimal environmental impact. In particular, chitosan/polyvinyl alcohol/g-C3N4 (CS/PVA/g-C3N4) films with different weight percentages PVA were prepared using simple methodologies characterized XRD, TGA, FT-IR, DSC, FE-SEM, EDX, elemental mapping analysis. The XRD FT-IR results validated formation. FE-SEM images showed smooth surface composite without any wrinkles; smoothness increased increases loading, morphologies largely unchanged. EDX analysis presence uniform dispersion g-C3N4 within film. photocatalytic activity CS/PVA/g-C3N4 was assessed by degradation rhodamine B dye (RhB) acetophenone under direct sunlight irradiation. exhibited superior efficiency toward RhB compared bare polymeric material. order CS/PVA (1.0) (95.34%, 33.33%) > (1.5) (93.18%, 31.31%) (0.5) (93.02%, 29.29%) (90.69%, 26.26%) (87.56%, 24%), respectively. Furthermore, tested against E. coli, Pseudomonas sps., Klesiella Enterococcus (1.5)/g-C3N4 offered better properties than other materials. conclusion, these biopolymer-based nanocomposites are highly provide a promising path development various biodegradable remediation antibacterial applications.

Language: Английский

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