Origins of Electron-Transfer Regime in Persulfate-Based Nonradical Oxidation Processes

Environmental Science & Technology, Год журнала: 2021, Номер 56(1), С. 78 - 97

Опубликована: Дек. 21, 2021

Persulfate-based nonradical oxidation processes (PS-NOPs) are appealing in wastewater purification due to their high efficiency and selectivity for removing trace organic contaminants complicated water matrices. In this review, we showcased the recent progresses of state-of-the-art strategies electron-transfer regimes PS-NOPs, including design metal metal-free heterogeneous catalysts, situ/operando characterization/analytical techniques, insights into origins mechanisms. a typical process (ETP), persulfate is activated by catalyst form surface complexes, which directly or indirectly interact with target pollutants finalize oxidation. We discussed different analytical techniques on fundamentals tactics accurate analysis ETP. Moreover, demonstrated challenges proposed future research ETP-based systems, such as computation-enabled molecular-level investigations, rational real-scenario applications environment. Overall, review dedicates sharpening understanding ETP PS-NOPs presenting promising remediation technology green chemistry.

Язык: Английский

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Single-atom catalysis in advanced oxidation processes for environmental remediation

Chemical Society Reviews, Год журнала: 2021, Номер 50(8), С. 5281 - 5322

Опубликована: Янв. 1, 2021

This review presents the recent advances in synthetic strategies, characterisation, and computations of carbon-based single-atom catalysts, as well their innovative applications mechanisms advanced oxidation technologies.

Язык: Английский

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Metal-based catalysts for persulfate and peroxymonosulfate activation in heterogeneous ways: A review

Chemical Engineering Journal, Год журнала: 2021, Номер 429, С. 132323 - 132323

Опубликована: Сен. 9, 2021

Язык: Английский

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Activation of peroxymonosulfate by single-atom Fe-g-C3N4 catalysts for high efficiency degradation of tetracycline via nonradical pathways: Role of high-valent iron-oxo species and Fe–Nx sites

Chemical Engineering Journal, Год журнала: 2021, Номер 427, С. 130803 - 130803

Опубликована: Июнь 12, 2021

Язык: Английский

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Unveiling the Origins of Selective Oxidation in Single-Atom Catalysis via Co–N₄–C Intensified Radical and Nonradical Pathways

Environmental Science & Technology, Год журнала: 2022, Номер 56(16), С. 11635 - 11645

Опубликована: Июль 11, 2022

Single-atom catalysts (SACs)-based peroxymonosulfate (PMS) systems are highly selective to the type of organic pollutants while mechanisms remain ambiguous. In this work, we carried out experimental and theoretical investigations reveal origins selectivity radical nonradical pathways in a designated Co–N4–C/PMS system. Two typical [bisphenol A (BPA) metronidazole (MNZ)] with different molecular structures were employed for comparison. We found that oxidation (SO4•– HO•) electron-transfer pathway (ETP) co-existed Pollutants (e.g., MNZ) high redox potential degraded primarily by free radicals rather than ETP, oxidization low-redox BPA) was dominated ETP at surface region Co–N4–C which overwhelmed contributions homogeneous phase. Intriguingly, could be manipulated PMS loading, simultaneously increased population elevated Co–N4–C-PMS* complexes ETP. Findings from work will unravel mysterious behavior SACs/PMS micropollutants.

Язык: Английский

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Activation of peroxymonosulfate via mediated electron transfer mechanism on single-atom Fe catalyst for effective organic pollutants removal

Applied Catalysis B Environment and Energy, Год журнала: 2021, Номер 299, С. 120714 - 120714

Опубликована: Сен. 14, 2021

Язык: Английский

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Synergy between cobalt and nickel on NiCo2O4 nanosheets promotes peroxymonosulfate activation for efficient norfloxacin degradation

Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 306, С. 121091 - 121091

Опубликована: Янв. 19, 2022

Язык: Английский

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Effect of phosphate on peroxymonosulfate activation: Accelerating generation of sulfate radical and underlying mechanism

Applied Catalysis B Environment and Energy, Год журнала: 2021, Номер 298, С. 120532 - 120532

Опубликована: Июль 13, 2021

Язык: Английский

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Pyrrolic N-rich biochar without exogenous nitrogen doping as a functional material for bisphenol A removal: Performance and mechanism

Applied Catalysis B Environment and Energy, Год журнала: 2021, Номер 291, С. 120093 - 120093

Опубликована: Март 6, 2021

Язык: Английский

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Fe, N-doped carbonaceous catalyst activating periodate for micropollutant removal: Significant role of electron transfer

Applied Catalysis B Environment and Energy, Год журнала: 2021, Номер 303, С. 120880 - 120880

Опубликована: Ноя. 1, 2021

Язык: Английский

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