Atomically dispersed Fe-N5 sites with optimized electronic structure for sustainable wastewater purification via efficient Fenton-like catalysis

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 358, P. 124385 - 124385

Published: July 9, 2024

Language: Английский

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Breaking through the oxygen hindrance effect in Fenton-like reactions to promote the generation of high-valent iron-oxo species within Fe-NxB/GCN single-atom catalysts

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125280 - 125280

Published: March 1, 2025

Language: Английский

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Picolinic acid-mediated Mn(II) activated periodate for ultrafast and selective degradation of emerging contaminants: Key role of high-valent Mn-oxo species

Water Research, Journal Year: 2024, Volume and Issue: 266, P. 122428 - 122428

Published: Sept. 10, 2024

Language: Английский

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Boosting Fe3+/Fe2+ cycling under visible-light-driven TiO2-based membrane with electron-deficient center for wastewater decontamination

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125070 - 125070

Published: Jan. 1, 2025

Language: Английский

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Innovative asymmetric CoSA‐N‐Ti3C2Tx catalysis: unleashing superoxide radicals for rapid self‐coupling removal of phenolic pollutant

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

The polymerization pathway of contaminants rivals the traditional mineralization in water purification technologies. However, designing suitable oxidative environments to steer toward remains challenging. This study introduces a nitrogen-oxygen double coordination strategy create an asymmetrical microenvironment for Co atoms on Ti3C2Tx MXenes, resulting novel Co-N2O3 microcellular structure that efficiently activates peroxymonosulfate. unique activation capability led complete removal various phenolic pollutants within 3 min, outperforming representative single-atom catalysts reported past three years. Identifying and recognizing reactive oxygen species highlight crucial role ⋅O2 -. efficient pollutant occurs through --mediated radical pathway, functioning as self-coupling reaction rather than deep oxidation. Theoretical calculations demonstrate electron-rich transfer more electrons catalyst surface, inducing reduction dissolved - microregion. In practical continuous flow-through application, system achieved 100 % acetaminophen efficiency 6.5 h, with hydraulic retention time just 0.98 s. provides new insights into previously underappreciated purification, offering simple advancing aggregation technology field wastewater treatment.

Language: Английский

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CoM (M = Mn, Fe, and Cu) LDH-assembled nanoconfined catalytic membranes for efficient micropollutant removal: Performance and atomic-scale mechanism insights

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123846 - 123846

Published: Feb. 1, 2025

Language: Английский

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Surface-adsorbed atom oxygen triggers nonradical formation via selective peroxymonosulfate decomposition by monolithic high-spin Co single-atom sites catalysts

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125207 - 125207

Published: Feb. 1, 2025

Language: Английский

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Surface-hydroxylated single-atom catalyst with an isolated Co-O-Zn configuration achieves high selectivity in regulating active species

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 11, 2025

Single-atom catalysts (SACs) are emerging as potent tools for the selective regulation of active species, offering substantial promise green and sustainable Fenton catalysis. However, current SACs face limitations due to specificity their supports, which only allow within certain oxidant systems. This constraint makes targeted across different systems challenging. In response, this study designs a SAC, termed CoSAs-ZnO, featuring surface hydroxylation an isolated asymmetric Co-O-Zn configuration. SAC can realize nearly 100% generation sulfate radicals (SO4•−) singlet oxygen (1O2) in peroxymonosulfate (PMS) peracetic acid (PAA) systems, respectively. Moreover, PMS-activated system efficiently treat electron-deficient-dominated refractory benzoic wastewater, achieving 100.0% removal multiple consecutive pilot-scale experiments. The PAA-activated facilitates rapid conversion benzyl alcohol benzaldehyde, with high selectivity 89.0%. Detailed DFT calculations reveal that hydroxyl groups on ZnO play critical role modulating adsorption configurations oxidants, thus enabling specific species each system. provides insights into design multifunctional applications paves way deployment wastewater treatment high-value chemical conversion. supports. Here, authors synthesised selectively generate

Language: Английский

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Insights into the activation of PAA by a 1D single-atom Fe hollow nanotube catalyst for acyclovir degradation: The formation mechanism and nearly 100 % contribution of high-valent iron-oxo species

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131569 - 131569

Published: Jan. 1, 2025

Language: Английский

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Atomically dispersed Ru-O3 anchored on the Ti3C2Tx surface with multiple reaction sites for the selective generation of single oxygen via peroxymonosulfate activation

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 507, P. 160741 - 160741

Published: Feb. 17, 2025

Language: Английский

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