Non-Radical Activation of Peracetic Acid by Powdered Activated Carbon for the Degradation of Sulfamethoxazole

Environmental Science & Technology, Год журнала: 2023, Номер 57(28), С. 10478 - 10488

Опубликована: Июнь 30, 2023

Environmental-friendly and low-cost catalysts for peracetic acid (PAA) activation are vital to promote their application micropollutant degradation in water. In this study, powdered activated carbon (PAC) was reported improve the of sulfamethoxazole (SMX). The improvement SMX PAC/PAA system expected be because PAA rather than co-existing H2O2 activation. Non-radical oxidation pathways, including mediated electron-transfer process singlet oxygen (1O2), were evidenced play dominant roles micro-organic pollutants. graphitization PAC, persistent free radicals, electron-donating groups like C–OH proposed contribute PAA. High could achieved acidic neutral conditions system. Overall, higher dosages PAC (0–0.02 g/L) (0–100 μM) benefited SMX. presence HCO3– lower significantly, while Cl–, PO43–, humic (HA) only reduced efficiency a little. study offered an efficient non-radical method using which can effectively used degrade

Язык: Английский

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A critical review on reliability of quenching experiment in advanced oxidation processes

Chemical Engineering Journal, Год журнала: 2023, Номер 466, С. 143161 - 143161

Опубликована: Апрель 23, 2023

Язык: Английский

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Overlooked Role of Coexistent Hydrogen Peroxide in Activated Peracetic Acid by Cu(II) for Enhanced Oxidation of Organic Contaminants

Environmental Science & Technology, Год журнала: 2024, Номер 58(35), С. 15741 - 15754

Опубликована: Фев. 15, 2024

Cu(II)-catalyzed peracetic acid (PAA) processes have shown significant potential to remove contaminants in water treatment. Nevertheless, the role of coexistent H

Язык: Английский

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Non-radical activation of low additive periodate by carbon-doped boron nitride for acetaminophen degradation: Significance of high-potential metastable intermediates

Journal of Hazardous Materials, Год журнала: 2024, Номер 469, С. 133806 - 133806

Опубликована: Фев. 15, 2024

Язык: Английский

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Mechanically treated Mn2O3 triggers peracetic acid activation for superior non-radical oxidation of micropollutants: Identification of reactive complexes

Water Research, Год журнала: 2024, Номер 255, С. 121486 - 121486

Опубликована: Март 19, 2024

Язык: Английский

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Recent advances in peracetic acid-based advanced oxidation processes for emerging pollutants elimination: A review

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112927 - 112927

Опубликована: Май 6, 2024

Язык: Английский

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Dual Nonradical Catalytic Pathways Mediated by Nanodiamond-Derived sp²/sp³ Hybrids for Sustainable Peracetic Acid Activation and Water Decontamination

Environmental Science & Technology, Год журнала: 2024, Номер 58(19), С. 8554 - 8564

Опубликована: Апрель 18, 2024

Peracetic acid (PAA) oxidation catalyzed by metal-free carbons is promising for advanced water decontamination. Nevertheless, developing reaction-oriented and high-performance carbocatalysts has been limited the ambiguous understanding of intrinsic relationship between carbon chemical/molecular structure PAA transformation behavior. Herein, we comprehensively investigated activation using a family well-defined sp2/sp3 hybrids from annealed nanodiamonds (ANDs). The activity ANDs displays volcano-type trend, with respect to ratio. Intriguingly, sp3-C-enriched AND exhibits best catalytic phenolic oxidation, which different persulfate chemistry in sp2 network normally outperforms sp3 hybridization. At electron-rich sp2-C site, undergoes reduction reaction generate reactive complex (AND-PAA*) induces an electron-transfer pathway. sp3-C site adjacent C═O, oxidized surface-confined OH* O* successively, ultimately evolves into singlet oxygen (1O2) as primary species. Benefiting dual nonradical regimes on hybrids, mediates sustainable redox recycle continuously species attack contaminants, meanwhile maintaining structural/chemical integrity exceptional reusability cyclic runs.

Язык: Английский

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Selective degradation of organic pollutants by highly dispersed Fe, Ni anchored on nitrogen carbon activating persulfate system: Electron transfer promotion, the impact of pollutant redox and adsorption properties

Chemical Engineering Journal, Год журнала: 2024, Номер 490, С. 151585 - 151585

Опубликована: Апрель 23, 2024

Язык: Английский

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Hydroxylamine enhanced the degradation of diclofenac in Cu(II)/peracetic acid system: Formation and contributions of CH3C(O)O•, CH3C(O)OO•, Cu(III) and •OH

Journal of Hazardous Materials, Год журнала: 2023, Номер 460, С. 132461 - 132461

Опубликована: Сен. 2, 2023

Язык: Английский

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A state-of-the-art review on heterogeneous catalysts-mediated activation of peracetic acid for micropollutants degradation: Classification of reaction pathways, mechanisms, influencing factors and DFT calculation

Chemical Engineering Journal, Год журнала: 2023, Номер 477, С. 147051 - 147051

Опубликована: Ноя. 1, 2023

Язык: Английский

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