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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Fine-Tune the Electronic Structure of Single-Atom Pd via Halogen Doping Toward Boosted Fenton-Like Reaction

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125218 - 125218

Опубликована: Март 1, 2025

Язык: Английский

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Regulating Electronic Structure from Local Charge Transfer of Fe-V Dual-sites for Efficient Peroxymonosulfate Activation

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125068 - 125068

Опубликована: Янв. 1, 2025

Язык: Английский

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Single-Atom Catalysts Toward Electrochemical Water Treatment

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 363, С. 124783 - 124783

Опубликована: Ноя. 5, 2024

Язык: Английский

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Graphitic carbon nitride (g-C3N4) loaded nanoscale zero-valent iron (nZVI) composites for enhanced hexavalent chromium removal: The role of g-C3N4, performance and mechanistic study

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114161 - 114161

Опубликована: Фев. 1, 2025

Язык: Английский

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Energy-efficient wastewater treatment using enhanced Fenton-like electroactive ceramic membrane with atomic-level engineered cobalt on Magnéli phase supports

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125484 - 125484

Опубликована: Май 1, 2025

Язык: Английский

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The single Fe atom anchored to graphitic carbon nitride doped air-cathode for bioenergy generation and tetracycline degradation in microbial fuel cells

Journal of Power Sources, Год журнала: 2025, Номер 631, С. 236228 - 236228

Опубликована: Янв. 22, 2025

Язык: Английский

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Solid-Phase Activation During the Degradation of Tetracycline by Modified Activated Carbon–Persulfate Composite

Catalysts, Год журнала: 2025, Номер 15(2), С. 169 - 169

Опубликована: Фев. 12, 2025

In this study, the novel composite materials of activated carbon (AC) and persulfate (PS) doped by nitrogen (N) sulfur (S) were successfully synthesized through one-step mechanical ball milling. Different from previous liquid-phase activation process PS, direct in situ solid-phase PS was achieved newly generated chemical bonds between AC PS. The increased crystal surface exposure highly electronegative atoms provided more reactive sites for modified composites, enabling them to extract electrons pollutant. Compared S doping, N-doped exhibited a higher oxidative degradation ability, with removal rate 93.6% tetracycline (TC, 40 mg/L) within min. interactions that occur interior avoid limitations mass transfer solid–liquid interface, thus expanding pH application range catalytic reaction minimizing interference other components solution. synergistic effect active oxygen species electron is main mechanism promoting pollutant degradation. This research puts forward new insight into approach proposes feasible method advanced treatment TC wastewater.

Язык: Английский

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Analyzing Degradation Pathways in the Conversion of Trichloroethylene to Vinyl Chloride: The Role of S/Fe Ratios

Process Safety and Environmental Protection, Год журнала: 2025, Номер 196, С. 106887 - 106887

Опубликована: Фев. 13, 2025

Язык: Английский

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Spinel-based zinc-doped Co3O4 (ZCO) catalytic membrane for efficient peroxymonosulfate activation and Chloroquine phosphate degradation: an atom doping strategy

Environmental Research, Год журнала: 2025, Номер unknown, С. 121408 - 121408

Опубликована: Март 1, 2025

Язык: Английский

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