Generation and identification of 1O2 in catalysts/peroxymonosulfate systems for water purification

Water Research, Journal Year: 2023, Volume and Issue: 245, P. 120614 - 120614

Published: Sept. 11, 2023

Language: Английский

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Site Engineering of Covalent Organic Frameworks for Regulating Peroxymonosulfate Activation to Generate Singlet Oxygen with 100 % Selectivity

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(43)

Published: Sept. 5, 2023

Singlet oxygen (1 O2 ) is an excellent reactive species (ROSs) for the selective conversion of organic matter, especially in advanced oxidation processes (AOPs). However, due to huge dilemma synthesizing single-site type catalysts, control and regulation 1 generation AOPs still challenging underlying mechanism remains largely obscure. Here, taking advantage well-defined flexibly tunable sites covalent frameworks (COFs), we report first achievement precisely regulating ROSs peroxymonosulfate (PMS)-based by site engineering COFs. Remarkably, COFs with bipyridine units (BPY-COFs) facilitate PMS activation via a nonradical pathway 100 % , whereas biphenyl-based (BPD-COFs) almost identical structures activate produce radicals (⋅OH SO4.- ). The BPY-COFs/PMS system delivers boosted performance degradation target pollutants from water, which ca. 9.4 times that its BPD-COFs counterpart, surpassing most reported PMS-based systems. Mechanism analysis indicated highly electronegative pyridine-N atoms on BPY-COFs provide extra adsorb terminal H PMS, resulting simultaneous adsorption O one pyridine ring, facilitates cleavage S-O bond generate .

Language: Английский

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Heterogeneous Fe-Co dual-atom catalyst outdistances the homogeneous counterpart for peroxymonosulfate-assisted water decontamination: New surface collision oxidation path and diatomic synergy

Water Research, Journal Year: 2023, Volume and Issue: 241, P. 120164 - 120164

Published: June 1, 2023

Language: Английский

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Synergy between MgFe2O4 and biochar derived from banana pseudo-stem promotes persulfate activation for efficient tetracycline degradation

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 468, P. 143773 - 143773

Published: May 29, 2023

Language: Английский

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Advances in thermochemical valorization of biomass towards carbon neutrality

Resources Conservation and Recycling, Journal Year: 2024, Volume and Issue: 212, P. 107905 - 107905

Published: Sept. 11, 2024

Language: Английский

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Doped Cu0 and sulfidation induced transition from R-O• to •OH in peracetic acid activation by sulfidated nano zero-valent iron-copper

Water Research, Journal Year: 2024, Volume and Issue: 256, P. 121621 - 121621

Published: April 20, 2024

Language: Английский

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Cu/N co-doped biochar activating PMS for selective degrading paracetamol via a non-radical pathway dominated by singlet oxygen and electron transfer

Chemosphere, Journal Year: 2024, Volume and Issue: 357, P. 141858 - 141858

Published: April 17, 2024

Language: Английский

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Unveiling activation mechanism of persulfate by homologous hemp-derived biochar catalysts for enhanced tetracycline wastewater remediation

Bioresource Technology, Journal Year: 2024, Volume and Issue: 400, P. 130684 - 130684

Published: April 11, 2024

Language: Английский

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Co-metabolism degradation of tetrabromobisphenol A by the newly isolated Sphingobium sp. strain QY1-1: Multiple metabolic pathways, toxicity evaluation, and mechanisms

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 488, P. 137440 - 137440

Published: Jan. 29, 2025

Language: Английский

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Efficient activation of peroxymonosulfate by Fe single-atom: The key role of Fe-pyrrolic nitrogen coordination in generating singlet oxygen and high-valent Fe species

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 462, P. 132753 - 132753

Published: Oct. 11, 2023

Language: Английский

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