Chemically bonded BiVO4/Bi19Cl3S27 heterojunction with fast hole extraction dynamics for continuous CO2 photoreduction

Advanced Powder Materials, Год журнала: 2023, Номер 3(1), С. 100140 - 100140

Опубликована: Июнь 5, 2023

Surface charge localization and inferior transfer efficiency seriously restrict the supply of reactive hydrogen reaction dynamics CO2 photoreduction performance photocatalysts. Herein, chemically bonded BiVO4/Bi19Cl3S27 (BVO/BCS) S-scheme heterojunction with a strong internal electric field is designed. Experimental density function theory calculation results confirm that elaborated accelerates vectorial migration photogenerated charges from BiVO4 to Bi19Cl3S27 via interfacial chemical bonding interactions (i.e., Bi-O Bi-S bonds) between Bi atoms BVO S BCS or O under light irradiation, breaking barrier surface Bi19Cl3S27, further decreasing energy generation, absorption activation. The separation carriers much more efficient counterpart individual in BVO/BCS system. As result, exhibits significantly improved continuous photocatalytic for reduction 24 h CO yield reaches 678.27 μmol·g−1. This work provides an atomic-level insight into kinetics mechanism heterojunction.

Язык: Английский

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Oxygen-Defective Bi2MoO6/g-C3N4 hollow tubulars S-scheme heterojunctions toward optimized photocatalytic performance

Journal of Colloid and Interface Science, Год журнала: 2023, Номер 653, С. 1566 - 1576

Опубликована: Сен. 28, 2023

Язык: Английский

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In-situ construction of S-scheme heterojunction nanoflowers by In2O3-regulated the growth of metal Bi and oxygen vacancy on BiOCl surface for boosting photocatalytic CO2 reduction

Separation and Purification Technology, Год журнала: 2024, Номер 340, С. 126786 - 126786

Опубликована: Фев. 14, 2024

Язык: Английский

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Z-scheme heterojunction photocatalyst formed by MOF-derived C-TiO2 and Bi2WO6 for enhancing degradation of oxytetracycline: Mechanistic insights and toxicity evaluation in the presence of a single active species

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 665, С. 41 - 59

Опубликована: Март 15, 2024

Язык: Английский

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MOFs-derived S-scheme ZnO/BiOBr heterojunction with rich oxygen vacancy for boosting photocatalytic CO2 reduction

Separation and Purification Technology, Год журнала: 2024, Номер 353, С. 128620 - 128620

Опубликована: Июнь 30, 2024

Язык: Английский

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Recent Advances in Diverse MXenes‐Based Structures for Photocatalytic CO₂ Reduction into Renewable Hydrocarbon Fuels

Advanced Functional Materials, Год журнала: 2024, Номер 34(19)

Опубликована: Янв. 17, 2024

Abstract Photocatalytic CO 2 reduction into renewable hydrocarbon fuels is a green solution to address emission and energy issues simultaneously. However, the fast recombination of photogenerated charge carriers sluggish surface reaction kinetics restrict efficiency photocatalytic reduction. The emergence 2D MXenes has potential in improving reduction, owing their high electrical conductivity, flexible structural properties, abundant active sites. Hence, this review will concisely summarize highlight recent advances MXenes‐based photocatalysts used First, synthesis properties briefly introduced. Second, mechanism photoreduction along with roles are summarized, including promoting adsorption , enhancing separation photo‐induced carriers, acting as robust support, photothermal effect. Third, different kinds such MXenes/metal oxides, MXenes/nitrides, MXenes/LDH, MXenes/perovskite, MXene‐derived for classified via type semiconductors. Finally, challenges perspectives also presented, exploring suitable machine learning, uncovering structure‐activity relationship by situ, time‐ space‐resolved characterization techniques, anti‐oxidization ability, scale‐up applications.

Язык: Английский

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Surface oxygen vacancy engineering in weak Bi–O bonded ferroelectric bismuth sodium titanate for boosting the photocatalytic CO₂ reduction reaction

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(16), С. 9661 - 9671

Опубликована: Янв. 1, 2024

A novel ferroelectric photocatalyst modulated by the surface and polarization states is developed to promote CO 2 reduction reaction, lattice distortion elemental coordination environment are elaborated in detail.

Язык: Английский

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S‐scheme 3D/3D Bi/BiOBr/P Doped g‐C3N4 with Oxygen Vacancies (Ov) for Photodegradation of Pharmaceuticals: In‐situ H2O2 Production and Plasmon Induced Stability

ChemSusChem, Год журнала: 2024, Номер unknown

Опубликована: Авг. 16, 2024

Abstract Complications accompanying photocatalyst stability and recombination of exciton charges in pollutants degradation has been addressed through the construction heterojunctions, especially S‐scheme heterojunction with strong distinctive redox centres. Herein, an BiOBr (BOR) g‐C 3 N 4 PO (CNPO) catalyst (BORCNPO) oxygen vacancy (Ov) was synthesized for levofloxacin (LVX) oxytetracycline (OTC) photodegradation under visible light. The 3D/3D BORCNPO possessed C−O−Br bridging bonds efficient charge transfer during fabrication heterojunction. In‐situ H 2 O formation affirmed by potassium titanium (IV) oxalate spectrophotometric method improved mineralization ability BORCNPO7.5 catalyst. Bi 0 surface plasmon resonance (SPR) enhanced involvement ⋅O − which increased reaction rate increasing cycling experiments. XPS radical trapping experiments supported mechanism high LVX times higher than OTC rate. Mineralization their intermediates were demonstrated florescence excitation emission matrix (FEEM) quadruple time flight performance liquid chromatography (QTOF‐HPLC). This work advances development highly stable catalysts heterostructure.

Язык: Английский

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In-situ construction of Z-scheme 2D/2D g-C3N4/BiOBr heterojunction with enhanced photocatalytic CO2 reduction

Surfaces and Interfaces, Год журнала: 2024, Номер 45, С. 103875 - 103875

Опубликована: Янв. 8, 2024

Язык: Английский

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Construction of Dual Active Sites in Perovskite Oxide for Targeted Photocatalytic CO₂ Reduction to CH₄

ACS Catalysis, Год журнала: 2024, Номер 14(14), С. 10746 - 10759

Опубликована: Июль 3, 2024

Язык: Английский

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