Efficient carbamazepine degradation by modified copper tailings and PMS system: Performance evaluation and mechanism

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133198 - 133198

Published: Dec. 10, 2023

Language: Английский

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Low-temperature molten-salt synthesis of Co3O4 nanoparticles grown on MXene can rapidly remove ornidazole via peroxymonosulfate activation

Environmental Pollution, Journal Year: 2023, Volume and Issue: 334, P. 121811 - 121811

Published: May 18, 2023

Language: Английский

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Multi-pathway on peroxymonosulfate activation by single cobalt atoms incorporated on CuO with enriched oxygen vacancies for high-efficient oxidation of tetracycline

Environmental Pollution, Journal Year: 2023, Volume and Issue: 335, P. 122298 - 122298

Published: Aug. 1, 2023

Language: Английский

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Performance enhancement and mechanism of electroenhanced peroxymonosulfate activation by single-atom Fe catalyst modified electrodes

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(37)

Published: Sept. 5, 2024

Peroxymonosulfate-based electrochemical advanced oxidation processes (PMS-EAOPs) have great potential for sustainable water purification, so an in-depth understanding of its catalytic mechanism is imperative to facilitate practical application. Herein, the performance enhancement and electroenhanced PMS activation by single-atom Fe catalyst modified carbon felt was investigated. Compared with anode, cathode exhibited faster bisphenol A degradation ( k = 0.073 vs. anode 0.015 min −1 ), increased consumption (98.8 10.3%), order magnitude reduction dissolution (0.068 0.787 mg L ). Mass transfer a key factor limiting activation, while electrostriction in hydrophobic region caused electric field (CEF) significantly mass coefficient m, 1.49 × 10 −4 2.68 −5 m s The enhanced synergistic result between electroactivation catalyst-activation, which controlled applied current density. 1 O 2 direct electron are main active species pathway, achieve high efficiency over pH 3 10. Density functional theory calculations prove CEF increases adsorption energy, lengthens O–O bond PMS, promotes charge transfer. flow-through convection unit achieves operation removal (99.5% 97.5%), low electrical energy (0.15 kWh log –1 –3 leaching (0.81% total single atom Fe). This work reveals critical role fields modulating Fenton-like activity, may advance development other electrocatalytic applications.

Language: Английский

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Investigating the evolution of reactive species in the CuO-mediated peroxymonosulfate activation process

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 465, P. 133425 - 133425

Published: Jan. 9, 2024

Language: Английский

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