High-efficiency degradation and detoxification of emerging antibiotic contaminants by vacuum UV-activated persulfate: Oxidation performance, mechanism insight, and application potential

Separation and Purification Technology, Год журнала: 2025, Номер 361, С. 131417 - 131417

Опубликована: Янв. 7, 2025

Язык: Английский

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Enhancing peroxymonosulfate activation performance of MIL-101(Fe) for efficient dyes degradation: Co-modification of metal-doping and thermal activation

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2025, Номер 168, С. 105951 - 105951

Опубликована: Янв. 5, 2025

Язык: Английский

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Mechanochemically synthesized peroxymonosulfate activators from spent zinc-manganese battery electrode material: correlation between pollutant electrophilicity index and electron transfer process

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125054 - 125054

Опубликована: Янв. 1, 2025

Язык: Английский

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Vacuum UV-based processes for water and wastewater purification: From unitary to multicomponent systems

Water Research, Год журнала: 2025, Номер 275, С. 123175 - 123175

Опубликована: Янв. 21, 2025

Язык: Английский

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Deciphering the Origin of Higher Shell Coordination on Single Iron Catalysts for Resilient Modulating Persulfate Oxidation Into Singlet Oxygen Pathway

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Abstract Precise manipulation of coordination structure single‐atom sites and establishment schematic microenvironment‐oxidation pathway relations remain significant challenges in Fenton‐like chemistry. Herein, incorporating sulfur heteroatoms into the higher shell FeN 4 (Fe‐NSC) exhibited a volcano trend p ‐hydroxybenzoic acid oxidation, aligning with number positions dopant. Specifically, S moderate electronegativity larger atomic radii triggers long‐range electronic interactions, which provoke Fe 3d orbital splitting spin electron rearrangement, resulting crossover states d xy 2 yz 1 xz z 21 . As result, partial filling e g t orbitals σ/π antibonding between 2p optimized adsorption–desorption behaviors key oxygenated intermediates from peroxymonosulfate activation. Thus, optimal binding configuration weakens Fe─O bonding accelerates PMS dissociation to yield C‐S‐N Fe‐O*, subsequently couples form O nearly 100% selectivity. The Fe‐NSC‐functionalized membrane outstanding long‐term reusability continuous flow reactor further validated practical application perspective. This study provides insight at both levels for rational design spin‐polarized catalysts its functions fine‐tuning oxidation pathways environmental catalysis.

Язык: Английский

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Heterogeneous Peroxymonosulfate-Based Advanced Oxidation Mechanisms: New Wine in Old Bottles?

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Март 18, 2025

Heterogeneous persulfate-based advanced oxidation processes (PS-AOPs) have been gaining significant attention in water/wastewater treatment; however, the elucidation of mechanisms PS-AOPs has become increasingly complex as understanding potential reactive pathways expands and rigor corresponding characterizations intensifies. As such, accurately illustrating system with a robust convincing methodology is crucial, while influence substrates must not be overlooked. In this Perspective, established techniques critical issues are systematically compiled to serve practical guidelines. Additionally, newly proposed pathway, direct transfer process (DOTP), discussed comparison conventional mineralization by oxidative species (ROS) PS-AOPs. Overall, investigation PS-AOP across various heterogeneous systems remains contentious calls for standardization, which work aims valuable reference.

Язык: Английский

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Direct Electron Transfer-Driven Nontoxic Oligomeric Deposition of Sulfonamide Antibiotics onto Carbon Materials for In Situ Water Remediation

Environmental Science & Technology, Год журнала: 2024, Номер 58(27), С. 12155 - 12166

Опубликована: Июнь 27, 2024

The rising in situ chemical oxidation (ISCO) technologies based on polymerization reactions have advanced the removal of emerging contaminants aquatic environment. However, despite their promise, uncertainties persist regarding effectiveness eliminating structurally complex contaminants, such as sulfonamide antibiotics (SAs). This study elucidated that oligomerization, rather than mineralization, predominantly governs SAs carbon materials/periodate system. amine groups played a crucial role forming organic radicals and subsequent coupling due to high f– index low bond orders. Moreover, highlighted robust adhesion oligomers catalyst surface, facilitated by enhanced van der Waals forces hydrophobic interactions. Importantly, plant animal toxicity assessments confirmed nontoxic nature deposited material affirming efficacy material-based ISCO treating contaminated surface water groundwater. Additionally, novel classification approach, Δlog k, was proposed differentiate kinetic control steps, providing deeper insights into quantitative structure–activity relationship (QSAR) facilitating selection optimal descriptors during oligomerization processes. Overall, these significantly enhance our understanding via demonstrate superiority C-ISCO decontamination.

Язык: Английский

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Confronting the Mysteries of Oxidative Reactive Species in Advanced Oxidation Processes: An Elephant in the Room

Environmental Science & Technology, Год журнала: 2024, Номер 58(42), С. 18496 - 18507

Опубликована: Окт. 9, 2024

Advanced oxidation processes (AOPs) are rapidly evolving but still lack well-established protocols for reliably identifying oxidative reactive species (ORSs). This Perspective presents both the radical and nonradical ORSs that have been identified or proposed, along with extensive controversies surrounding mechanisms. Conventional identification tools, such as quenchers, probes, spin trappers, might be inadequate analytical demands of systems in which multiple coexist, often yielding misleading results. Therefore, challenges these complex, short-lived, transient must fully acknowledged. Refining methods is necessary, supported by rigorous experiments innovative paradigms, particularly through kinetic analysis based on situ spectroscopic techniques multiple-probe strategies. To demystify complex ORSs, future efforts should made to develop advanced tools strategies enhance mechanism understanding. In addition, integrating real-world conditions into experimental designs will establish a reliable framework fundamental studies, providing more accurate insights effectively guiding design AOPs.

Язык: Английский

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Aeration‐Free Photo‐Fenton‐Like Reaction Mediated by Heterojunction Photocatalyst toward Efficient Degradation of Organic Pollutants

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 15, 2024

The regulation of peroxymonosulfate (PMS) activation by photo-assisted heterogeneous catalysis is under in-depth investigation with potential as a replaceable advanced oxidation process in water purification, yet it remains significant challenge. Herein, we demonstrate strategy to construct polyethylene glycol (PEG) well-coupled dual-defect V

Язык: Английский

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Selective oxidation of emerging organic contaminants in heterogeneous Fenton-like systems

Nano Research, Год журнала: 2024, Номер 17(11), С. 9300 - 9325

Опубликована: Авг. 5, 2024

Язык: Английский

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