Internal electric field steering S-scheme charge transfer in ZnIn2S4/COF boosts H2O2 photosynthesis from water and air for sustainable disinfection

npj Clean Water, Год журнала: 2025, Номер 8(1)

Опубликована: Янв. 21, 2025

Язык: Английский

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A critical review of COFs-based photocatalysis for environmental remediation

Environmental Research, Год журнала: 2025, Номер unknown, С. 121166 - 121166

Опубликована: Фев. 1, 2025

Язык: Английский

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An Electron Transfer Mediated Mechanism for Efficient Photoreforming of Waste Plastics Using a Ni₃S₄/ZnCdS Heterojunction

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 24, 2025

Abstract The oxidative degradation of plastics in conjunction with the production clean hydrogen (H 2 ) represents a significant challenge. Herein, Ni 3 S 4 /ZnCdS heterojunction is rationally synthesized and employed for efficient H high‐selectivity value‐added chemicals from waste plastic. By integrating spectroscopic analysis techniques density functional theory (DFT) calculations, solely electron transfer‐mediated reaction mechanism confirmed, wherein extracts electrons ZnCdS (ZCS) to promote spatial segregation photogenerated holes, which not only facilitates but also maintains high oxidation potential holes on ZCS surface, favoring hole‐dominated plastic oxidation. Notably, catalyst exhibited rates as 27.9 17.4 mmol g −1 h , along selectivity 94.2% 78.3% liquid product toward pyruvate acetate polylactic acid (PLA) polyethylene terephthalate (PET), respectively. Additionally, carbon yields 26.5% 2.2% are measured after 9 photoreforming, representing highest values reported date. Overall, this research presents promising approach converting into fuel valuable chemical products, offering solution growing issue “ White Pollution ”.

Язык: Английский

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Lattice Match‐Enabled Covalent Heterointerfaces with Built‐in Electric Field for Efficient Hydrogen Peroxide Photosynthesis

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 20, 2024

Crafting semiconducting heterojunctions represents an effective route to enhance photocatalysis by improving interfacial charge separation and transport. However, lattice mismatch (δ) between different semiconductors can significantly hinder dynamics. Here, meticulous tailoring is reported create a covalent heterointerface with built-in electric field (BIEF), imparting markedly improved hydrogen peroxide (H

Язык: Английский

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Precise Regulation of Interlayer Stacking Modes in Trinuclear Copper Organic Frameworks for Efficient Photocatalytic Reduction of Uranium(VI)

Advanced Science, Год журнала: 2024, Номер unknown

Опубликована: Сен. 27, 2024

Abstract The interlayer stacking modes of 2D covalent‐organic frameworks (COFs) directly influence their structural features, ultimately determining functional output. However, controllably modulating the structure in traditional metal‐free COFs, based on same building blocks, remains challenging. Here, two trinuclear copper organic are synthesized successfully with different structures: eclipsed AA Cu 3 ‐PA‐COF‐AA and staggered ABC ‐PA‐COF‐ABC, using monomers. Remarkably, various functionalities, including porosity electronic optical properties, can be effectively regulated by stacking. As a result, ‐PA‐COF‐ABC exhibit significantly activities toward photoreduction U(VI), presenting promising strategy for removing radioactive uranium pollution. Due to its broader visible‐light absorption range superior photogenerated carrier migration separation efficiency, achieves U(VI) removal ratio 93.6% without additional sacrificial agents an air atmosphere—≈2.2 times higher than that (42.0%). To best knowledge, this is first study elucidate effect COFs photocatalytic activity reduction. This finding may inspire further exploration structure‐function relationship as photocatalysts potential photoinduced radionuclides.

Язык: Английский

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Functionalized Modification of Conjugated Porous Polymers for Full Reaction Photosynthesis of H₂O₂

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 16, 2024

Abstract Modulating the molecular structure to achieve full reaction including oxygen reduction and water oxidation is a promising strategy for efficient photosynthesis of hydrogen peroxide (H 2 O ) but remains challenge. Herein, triphenylamine naphthalimide‐based conjugated porous polymers are synthesized with photo oxidation‐reduction structures, then sulfonate (─SO 3 H) quaternary ammonium groups introduced via post‐modification produce two photocatalysts named NI‐TPA‐NI‐SO H NI‐TPA‐NI‐N, respectively. Introducing charged functional has improved hydrophilicity (O adsorption, beyond that, ─SO further stabilizes adsorbed bonding as well accelerates photogenerated carrier separation electron/proton transport that enables . Therefore, motivated by charge separation, stabilized boosted proton‐coupled electron transfer, exhibits highest light‐driven production rate among three photocatalysts, reaching 3.40 mmol g −1 h , which 4.9‐fold NI‐TPA‐NI. Remarkably, in presence ethylenediaminetetraacetic acid disodium salt, its significantly enhances 14.5 superior most reported organic best knowledge.

Язык: Английский

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Enhancement of Photocatalytic Self-Fenton Degradation toward Sulfamethoxazole by Highly Symmetrical Triazine-based Covalent Organic Frameworks

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125062 - 125062

Опубликована: Янв. 1, 2025

Язык: Английский

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Interfacial C-N-S bridged SnS2/COF S-scheme heterojunction with upgraded near-infrared photo-activity for H2O2 synthesis

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 162489 - 162489

Опубликована: Янв. 1, 2025

Язык: Английский

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Improvement of the oxidation efficiency of photogenerated holes at ferric single-atom catalysts via ferric-nitrogen co-sculpted carbon defect engineering

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159996 - 159996

Опубликована: Янв. 1, 2025

Язык: Английский

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Enhancing charge transfer efficiency through carboxyl-modification to improve the photocatalytic activity of covalent organic frameworks for hydrogen evolution from water splitting

Journal of Colloid and Interface Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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