Non-metallic iodine single-atom catalysts with optimized electronic structures for efficient Fenton-like reactions

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Янв. 18, 2025

In this study, we introduce a highly effective non-metallic iodine single-atom catalyst (SAC), referred to as I-NC, which is strategically confined within nitrogen-doped carbon (NC) scaffold. This configuration features distinctive C-I coordination that optimizes the electronic structure of nitrogen-adjacent sites. As result, arrangement enhances electron transfer from peroxymonosulfate (PMS) active sites, particularly electron-deficient carbon. followed by deprotonation process generates radical (SO5•-). Subsequently, SO5•- undergoes disproportionation reaction, leading production singlet oxygen (1O2). Furthermore, energy barrier for rate-limiting step generation in I-NC significantly lower at 1.45 eV, compared 1.65 eV NC reduction effectively overcomes kinetic obstacles, thereby facilitating an enhanced 1O2. Consequently, exhibits remarkable catalytic efficiency and unmatched reactivity PMS activation. leads accelerated degradation pollutants, evidenced relatively high observed rate constant (kobs ~ 0.436 min-1) other metallic SACs. study offers valuable insights into rational design SACs, showcasing their promising potential Fenton-like reactions water treatment applications.

Язык: Английский

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Enhancement of anodic performance toward peroxymonosulfate-based fenton-like reactions: Role of phosphorus-doping

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159588 - 159588

Опубликована: Янв. 1, 2025

Язык: Английский

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CoFe-prussian blue analogues@MXenes membrane activated peroxymonosulfate through enhanced electron transfer for nanoconfined catalytic degradation of bisphenol A: The crucial role of 1O2

Journal of Membrane Science, Год журнала: 2025, Номер unknown, С. 123738 - 123738

Опубликована: Янв. 1, 2025

Язык: Английский

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Triggering nanoconfinement effect in advanced oxidation processes (AOPs) for boosted degradation of organic contaminants: A review

Chemical Engineering Journal, Год журнала: 2024, Номер 503, С. 158428 - 158428

Опубликована: Дек. 9, 2024

Язык: Английский

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Nanoconfined catalytic macrostructures for advanced water remediation: From basic understanding to future application strategies

Water Research, Год журнала: 2024, Номер 272, С. 122960 - 122960

Опубликована: Дек. 11, 2024

Язык: Английский

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Modulated fenton-like activity via peroxymonosulfate activation by CoxNiy-LDH: Mechanism of Co/Ni bimetallic synergy and application of catalytic membrane

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 131807 - 131807

Опубликована: Янв. 1, 2025

Язык: Английский

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Confinement Improves Mass Transfer and Chemical Reactivity in Electrified Membranes for Micropollutant Degradation

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Abstract Micropollutants (MPs) pose a significant threat to global water environments, necessitating advanced treatment technologies. Distributed electrochemical systems utilizing electrified membranes (EMs) show promise but face challenges due unclear mass transfer and reaction mechanisms within membrane pores of varying sizes surface chemistry. This review examines the interplay between spatial confinement, transfer, chemical reactions in EMs, focusing on reactive species (RSs), EM‐MPs system evolution, phenomena across pore from microns sub‐nanometer scales. Despite advances RS research, coherent mechanistic understanding MP degradation under confinement remains elusive, particularly extreme where deviate bulk behavior. Gaps knowledge stem complex dynamics, thermodynamics kinetics, need for detailed theoretical describe effects. summarizes generation detection methods RSs, outlines progress EM operational modes, elucidates how impacts both reactions. Future research shall focus precise identification quantitative regulation optimization processes relation RSs MPs, investigation active sites energetic barriers confined environments.

Язык: Английский

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Unexplored role of nanoconfinement in regulating contaminant oxidation pathways for water decontamination: Confined energy driving low-carbon route

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160733 - 160733

Опубликована: Фев. 1, 2025

Язык: Английский

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Visible-light photocatalytic oxygen activation by oxygen vacancies-rich BiOI for enhanced removal of bisphenol A in water

Environmental Research, Год журнала: 2025, Номер unknown, С. 121412 - 121412

Опубликована: Март 1, 2025

Язык: Английский

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Synchronization Strategy for Activity and Stability in Fenton‐Like Single‐Atom Catalysis

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Abstract Single‐atom catalysts (SACs) have garnered significant attention in the applications of environmental remediation based on Fenton‐like systems. Current research single‐atom catalysis often emphasizes catalytic activity and mechanism regulation, while paying limited to simultaneous enhancement both stability—a critical factor for practical scale‐up SACs. This review systematically summarizes recent advances synchronization strategies improving stability catalysis, with a focus design principles mechanisms four key strategies: coordination engineering, confinement effects, carrier substitution, module design. To best knowledge, this represents first comprehensive from perspective concurrent optimization stability. Additionally, auxiliary role machine learning lifecycle assessment (LCA) is evaluated advancing these strategies. By investigating interplay among different support materials, configurations, reaction environments, as well enlarged modules, factors governing stability/activity SACs are highlighted, future directions proposed developing next‐generation high efficiency long‐term durability remediation.

Язык: Английский

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