Ultrafast degradation of emerging organic pollutants via activation of peroxymonosulfate over Fe3C/Fe@N-C-x: Singlet oxygen evolution and electron-transfer mechanisms

Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 321, С. 122034 - 122034

Опубликована: Окт. 10, 2022

Язык: Английский

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Ball milling-assisted preparation of N-doped biochar loaded with ferrous sulfide as persulfate activator for phenol degradation: Multiple active sites-triggered radical/non-radical mechanism

Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 316, С. 121639 - 121639

Опубликована: Июнь 16, 2022

Язык: Английский

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Almost 100 % electron transfer regime over Fe−Co dual-atom catalyst toward pollutants removal: Regulation of peroxymonosulfate adsorption mode

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 339, С. 123178 - 123178

Опубликована: Авг. 15, 2023

Язык: Английский

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A multiple Kirkendall strategy for converting nanosized zero-valent iron to highly active Fenton-like catalyst for organics degradation

Proceedings of the National Academy of Sciences, Год журнала: 2023, Номер 120(39)

Опубликована: Сен. 19, 2023

Nanosized zero-valent iron (nZVI) is a promising persulfate (PS) activator, however, its structurally dense oxide shell seriously inhibited electrons transfer for O-O bond cleavage of PS. Herein, we introduced sulfidation and phosphorus-doped biochar breaking the pristine with formation FeS FePO 4 -containing mixed shell. In this case, faster diffusion rate atoms compared to components triggered multiple Kirkendall effects, causing inward fluxion vacancies further coalescing into radial nanocracks. Exemplified by trichloroethylene (TCE) removal, such unique “lemon-slice-like” nanocrack structure favored fast outward ferrous ions across PS activation high-efficient generation utilization reactive species, as evidenced effective dechlorination (90.6%) mineralization (85.4%) TCE. O 2 • - contributed most TCE decomposition, moreover, SnZVI@PBC gradually became electron-deficient thus extracted from achieving nonradical-based degradation. Compared nZVI/PS process, SnZVI@PBC/PS system could significantly reduce catalyst dosage (87.5%) amount (68.8%) achieve nearly complete degradation, was anti-interference, stable, pH-universal. This study advanced mechanistic understandings effects-triggered on nZVI corresponding rational design Fenton-like catalysts organics

Язык: Английский

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Photoinduced acceleration of Fe3+/Fe2+ cycle in heterogeneous FeNi-MOFs to boost peroxodisulfate activation for organic pollutant degradation

Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 321, С. 122054 - 122054

Опубликована: Окт. 8, 2022

Язык: Английский

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Selective degradation of organic micropollutants by activation of peroxymonosulfate by Se@NC: Role of Se doping and nonradical pathway mechanism

Journal of Hazardous Materials, Год журнала: 2023, Номер 452, С. 131202 - 131202

Опубликована: Март 15, 2023

Язык: Английский

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Nitrogen-doped biochar (N-doped BC) and iron/nitrogen co-doped biochar (Fe/N co-doped BC) for removal of refractory organic pollutants

Journal of Hazardous Materials, Год журнала: 2023, Номер 446, С. 130727 - 130727

Опубликована: Янв. 4, 2023

Язык: Английский

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Dual redox cycles of Mn(Ⅱ)/Mn(III) and Mn(III)/Mn(IV) on porous Mn/N co-doped biochar surfaces for promoting peroxymonosulfate activation and ciprofloxacin degradation

Journal of Colloid and Interface Science, Год журнала: 2022, Номер 634, С. 255 - 267

Опубликована: Дек. 9, 2022

Язык: Английский

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Enhanced degradation of sulfamethoxazole by activation of peroxodisulfate with red mud modified biochar: Synergistic effect between adsorption and nonradical activation

Chemical Engineering Journal, Год журнала: 2023, Номер 460, С. 141578 - 141578

Опубликована: Янв. 28, 2023

Язык: Английский

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One-step preparation of Fe/N co-doped porous biochar for chromium(VI) and bisphenol a decontamination in water: Insights to co-activation and adsorption mechanisms

Bioresource Technology, Год журнала: 2022, Номер 361, С. 127718 - 127718

Опубликована: Июль 30, 2022

Язык: Английский

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