High molecular oxygen activation capacity of carbon defective g-C3N5 for photocatalytic degradation of antibiotics in water

Separation and Purification Technology, Год журнала: 2025, Номер 354, С. 128928 - 128928

Опубликована: Фев. 1, 2025

Язык: Английский

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Catalytic Mechanism of Nanocrystalline and Amorphous Matrix in Fe‐Based Microwires for Advanced Oxidation

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 24, 2025

Abstract The sustainable management of water resources is a critical global challenge, with advanced oxidation processes emerging as promising solution for addressing environmental pollution. However, the clear trade‐off between catalytic activity and stability in existing catalysts hinders their broader application. In this study, nanocrystalline/amorphous (N/A) microwire catalyst developed, featuring design that regulates nanocrystal size while preserving pure amorphous matrix. Unlike brittle annealed N/A microwires subjected to structural relaxation, as‐cast demonstrate outstanding performance oxidation. They can completely degrade pollutants within 60 s maintain up 40 reuse cycles. Theoretical calculations material characterizations reveal exceptional properties arise from combined effects residual stresses stored matrix synergistic effect nanocrystals phases. Moreover, optimally sized nanocrystalline phase optimizes atomic arrangement induces an structure low coordination number, providing abundant active sites. This also enhances adsorption characteristics persulfate accelerates electron transfer. These findings offer novel framework developing efficient stable wastewater treatment.

Язык: Английский

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Emerging investigator series: recent progress on the activation of persulfate by vacancy defect materials: the role of vacancies

Environmental Science Nano, Год журнала: 2024, Номер 11(8), С. 3230 - 3249

Опубликована: Янв. 1, 2024

This review summarizes the key roles of various vacancy defects in PS-AOPs and provides insights into understanding defect persulfate activation to promote development water treatments.

Язык: Английский

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Pore modulation of single atomic Fe sites for ultrafast Fenton-like chemistry with amplified electron migration oxidation

Water Research, Год журнала: 2024, Номер 268, С. 122545 - 122545

Опубликована: Сен. 30, 2024

Язык: Английский

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Advances in the Removal of Organic Pollutants from Water by Photocatalytic Activation of Persulfate: Photocatalyst Modification Strategy and Reaction Mechanism

ChemSusChem, Год журнала: 2024, Номер 17(20)

Опубликована: Май 14, 2024

Abstract Environmental pollution caused by persistent organic pollutants has imposed big threats to the health of human and ecological systems. The development efficient methods effectively degrade remove these is therefore paramount importance. Photocatalytic persulfate‐based advanced oxidation technologies (PS‐AOTs), which depend on highly reactive SO 4 − radicals generated activation PS pollutants, have shown great promise. This work discusses application modification strategies common photocatalysts in photocatalytic PS‐AOTs, compares degradation performance different catalysts for pollutants. Furthermore, essential elements impacting PS‐AOTs are discussed, including water matrix, reaction process mechanism, pollutant pathway, singlet oxygen generation, potential hazards. Finally, existing issues future challenges summarized prospected encourage their practical application. In particular, providing new insights into this review sheds light opportunities with features will be interests promote better fundamental understanding applications.

Язык: Английский

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Rational regulation of Cu species in N-doped carbon-hosted Cu-based single-atom electrocatalysts for the conversion of nitrate to ammonia

Coordination Chemistry Reviews, Год журнала: 2024, Номер 522, С. 216174 - 216174

Опубликована: Сен. 6, 2024

Язык: Английский

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Integration of single-atom photothermal catalysts with surface-localized high temperature in peroxymonosulfate-based Fenton-like systems for enhanced antibiotics degradation

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 678, С. 226 - 239

Опубликована: Авг. 27, 2024

Язык: Английский

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Enhanced Fe^IV═O Generation via Peroxymonosulfate Activation by an Edge‐Site Engineered Single‐Atom Iron Catalyst

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 19, 2025

Abstract As an oxidant, the ferryl‐oxo complex (Fe IV ═O) offers excellent reactivity and selectivity for degrading recalcitrant organic contaminants. However, enhancing Fe ═O generation on heterogeneous surfaces remains challenging because underlying formation mechanism is poorly understood. This study introduces edge defects onto a single‐atom catalyst (FeNC‐edge) to promote via peroxymonosulfate (PMS) activation. In presence of PMS, FeNC‐edge at low dose (20 mg L −1 , equivalent 0.14 Fe) exhibits unprecedented activity contaminant degradation. Electrochemical analysis, in situ Raman spectroscopy, probe experiments confirm that enhanced surface FeNC‐edge. Density functional theory calculations reveal introduced sites concentrate electron density active atoms, facilitating charge transfer from PMS. Notably, immobilized polymeric membrane functioned as continuous‐flow oxidation system with efficient recycling minimal leaching.

Язык: Английский

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Investigation of the Fe-Co Synergistic Mechanism for Peroxymonosulfate Activation in Cobalt-Modified Pyrite

Опубликована: Янв. 1, 2025

Язык: Английский

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Insights into the mechanism of mechanically treated Fe/Mn-N doped seed meal hydrochar for efficient adsorption and degradation of tetracycline

Biochar, Год журнала: 2025, Номер 7(1)

Опубликована: Март 7, 2025

Язык: Английский

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