Insight into tetracycline photocatalytic degradation mechanism in a wide pH range on BiOI/BiOBr: Coupling DFT/QSAR simulations with experiments

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 340, С. 123226 - 123226

Опубликована: Авг. 25, 2023

Язык: Английский

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Ultrathin porous Bi2WO6 with rich oxygen vacancies for promoted adsorption-photocatalytic tetracycline degradation

Chemical Engineering Journal, Год журнала: 2023, Номер 464, С. 142694 - 142694

Опубликована: Март 30, 2023

Язык: Английский

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Identifying the key N species for electrocatalytic oxygen reduction reaction on N-doped graphene

Nano Research, Год журнала: 2023, Номер 16(5), С. 6642 - 6651

Опубликована: Фев. 28, 2023

Язык: Английский

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Nitrogen-doped carbon skeleton loaded with PDI/MZO S-scheme photocatalyst with enhanced adsorption and photocatalysis activity

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 348, С. 123839 - 123839

Опубликована: Апрель 24, 2024

Язык: Английский

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Synergistic enhancement of N, S co-modified biochar for removal of tetracycline hydrochloride from aqueous solution: Tunable micro-mesoporosity and chemisorption sites

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152189 - 152189

Опубликована: Май 12, 2024

Язык: Английский

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Electronic structure regulation of Fe single atom coordinated nitrogen doping MoS2 catalyst enhances the Fenton-like reaction efficient for organic pollutant control

Journal of Hazardous Materials, Год журнала: 2024, Номер 467, С. 133756 - 133756

Опубликована: Фев. 13, 2024

Язык: Английский

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Oxygen Vacancy-Mediated unraveling active species sources in BiO2-x Catalysts: The significance of lattice and molecular oxygen in catalytic reaction in aqueous solution

Chemical Engineering Journal, Год журнала: 2024, Номер 483, С. 149144 - 149144

Опубликована: Фев. 1, 2024

Язык: Английский

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Insight into adsorption properties and mechanism of geopolymer adsorbents with inherent alkali release for tetracycline

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112663 - 112663

Опубликована: Апрель 5, 2024

Язык: Английский

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Aeration-Free In Situ Fenton-like Reaction: Specific Adsorption and Activation of Oxygen on Heterophase Oxygen Vacancies

Environmental Science & Technology, Год журнала: 2024, Номер 58(4), С. 1921 - 1933

Опубликована: Янв. 17, 2024

Aeration accounts for 35–51% of the overall energy consumption in wastewater treatment processes and results an annual 5–7.5 billion kWh. Herein, a solar-powered continuous-flow device was designed aeration-free situ Fenton-like reactions to treat wastewater. This system is based on combination TiO2–x/W18O49 featuring heterophase oxygen vacancy interactions with floating reduced graphene/polyurethane foam, which produces hydrogen peroxide at rates up 4.2 ppm h–1 degradation more than 90% various antibiotics. The vacancies play important role stretching O–O bond by regulating d-band center TiO2–x/W18O49, promoting hydrogenation *·O2– or *OOH H+ enrichment, accelerating production reactive species spontaneous adsorption peroxide. Furthermore, mechanisms antibiotics actual were thoroughly investigated. In short, study provides meaningful reference potentially undertaking "aeration-free" Fenton reaction, can help reduce even completely eradicate aeration costs requirements during

Язык: Английский

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Specific Adsorption and Efficient Degradation of Cylindrospermopsin on Oxygen-Vacancy Sites of BiOBr

ACS Catalysis, Год журнала: 2022, Номер 13(1), С. 445 - 458

Опубликована: Дек. 19, 2022

The oxygen-vacancy (OV)-rich BiOBr exhibits higher photocatalytic activity than that of the OV-deficient one. interaction target substrate with surface OV sites should be essential for high activity, but it is not well understood so far. Here, we used a cyanotoxin cylindrospermopsin (CYN) as model to investigate specific adsorption pollutants highly hydrophilic groups on BiOBr. We found CYN rich OVs much stronger poor OVs, and also degradation rate CYN. Various experiments indicated strong OV-rich originates from between sulfate group sites. Density functional theory calculations suggest that, sites, Brönsted acid (OHB) are formed through dissociative water molecules. combining effect hydrogen bonding these OHB coordination Lewis Bi make quite strong. Such can explain rapid CYN, which proceeds direct oxidation by h+ or OHB-derived •OH. Based ultra-performance liquid chromatography–tandem mass spectrometry analysis, begins via hydroxylation at C5–C6 double bond in uracil ring •OH, further degraded two pathways. This work provides deeper understanding critical roles processes photocatalysis organic pollutant removal.

Язык: Английский

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