S-scheme heterojunction photocatalysts: Mechanism, challenges and opportunities

Coordination Chemistry Reviews, Год журнала: 2024, Номер 521, С. 216177 - 216177

Опубликована: Авг. 29, 2024

Язык: Английский

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Prolonging Charge Carrier lifetime via Intraband Defect Levels in S‐scheme Heterojunctions for Artificial Photosynthesis

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 15, 2024

S-scheme heterostructure photocatalysts, distinguished by unique charge-transfer pathways and exceptional catalytic redox capabilities, have found widespread applications in addressing challenging chemical processes, including the photocatalytic reduction of CO

Язык: Английский

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Charge-transfer dynamics in S-scheme photocatalyst

Nature Reviews Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 17, 2025

Язык: Английский

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Cd Single Atom as an Electron Mediator in an S‐Scheme Heterojunction for Artificial Photosynthesis of H₂O₂

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Abstract Developing conductor‐mediated S‐scheme heterojunction photocatalysts imitating natural photosynthetic systems emerges as a promising approach to hydrogen peroxide (H 2 O ) production. However, achieving precise coupling between two semiconductors with charge shuttle and modulating the interfacial interactions still remain significant bottleneck. Herein, we propose catalyst architecture Cd single atom mediated formed by interfacing CdS TiO nanoparticles. This exhibits an H production rate high 60.33 µmol g −1 min under UV–vis light irradiation, which is attributed efficient transport at interface of thanks S‐scheme. In‐situ X‐ray photoelectron spectroscopy (XPS) electron spin resonance (ESR) spin‐trapping tests confirm transfer route. Femtosecond transient absorption (fs‐TA) other ex‐situ characterizations further corroborate across interface. work offers new perspective on constructing atoms heterojunctions enhance photocatalytic performance.

Язык: Английский

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Construction and Embedding of Oxygen Vacancies in Organic-Inorganic S-scheme Heterojunctions for Optimizing the Photocatalytic Degradation Performance of PDI-Nb/BiVO4 towards Antibiotics

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125141 - 125141

Опубликована: Фев. 1, 2025

Язык: Английский

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Inorganic–Organic Bi₄Nb_1–xTa_xO₈Cl/rGO/SA-PTA Z-Scheme Heterojunction with a Third-Order Polarized Electric Field and a Fast Electron Transfer Channel for Photocatalytic Overall Water Splitting

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 5155 - 5170

Опубликована: Март 12, 2025

Язык: Английский

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A Coherent-Lattice Atomic-Level Heterojunction Enabling Efficient and Selective Upcycling of Glycerol for Lactic Acid and H₂ Production

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Photocatalytic upcycling of glycerol, a significant byproduct biodiesel, to value-added lactic acid coupled with H2 production shows great promise for resource utilization and renewable fuel production. However, this reaction is currently limited low efficiency moderate selectivity due insufficient light absorption, rapid charge carrier recombination, unfavorable kinetics. Herein, we report an atomic-level heterojunction photocatalyst consisting CdxZn1–xS embedded uniformly Cu–S3 moieties at the scale. Due formation coherent-lattice interface strong interfacial electronic interactions between host, as well localized surface plasmon resonance effects induced by moieties, such much enhanced separation transfer absorption covering full solar-light spectrum. As result, 10-fold increase in glycerol conversion (LA) achieved, LA reaching over 95%. The present work demonstrates potential photocatalysis biomass toward coproduction valuable chemicals using structure-defined photocatalysts.

Язык: Английский

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Verifying the Unique Charge Migration Pathway in Polymeric Homojunctions for Artificial Photosynthesis of Hydrogen Peroxide

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Artificial photosynthesis for producing high-value hydrogen peroxide (H2O2) using carbon nitride-based systems holds immense potential. However, understanding the charge transfer dynamics in homojunction photocatalysts remains a significant challenge owing to limitations of current characterization techniques. Here, polymeric C3N5/C3N4 (CNHJ) is employed as model system probe interfacial electron transfer. Bimetallic cocatalysts serve sensitive probes, enabling situ tracking S-scheme between C3N5 and C3N4 via X-ray photoelectron spectroscopy. Leveraging unique advantages this S-scheme, CNHJ demonstrates substantially enhanced performance two-electron oxygen reduction reaction, achieving an impressive H2O2 production rate 8.78 mmol g-1 h-1 under visible light irradiation. Furthermore, robust continuous-flow setups, natural sunlight, photocatalytic disinfection tests, highlighting its practical This approach offers new insights into dynamic mechanisms paves way advancing artificial technologies.

Язык: Английский

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Oxygen vacancy-modified fast charge transport channels at the interface of bismuth S-scheme heterojunctions promoting photocatalytic performance

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159887 - 159887

Опубликована: Янв. 1, 2025

Язык: Английский

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Improving charge separation in poly(heptazine imide) via synergy of covalent S-scheme heterojunction and Schottky junction for efficient photocatalytic CO2 reduction

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160043 - 160043

Опубликована: Янв. 1, 2025

Язык: Английский

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