All-Solid-State Z-Scheme CsPbBr₃/Au/g-C₃N₄ Heterojunctions for Enhanced Photocatalytic C–H Oxidation

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 6, 2025

Z-scheme heterojunctions have emerged as a novel type of environmental and energy photocatalysts owing to their unique charge separation transfer pathways well robust redox capabilities. Herein, this paper reports straightforward technique for fabricating an anisotropic all-solid-state CsPbBr3/Au/g-C3N4 heterojunction, wherein CsPbBr3, g-C3N4, the electron-transfer system (Au) are spatially immobilized. This three-component presented high photocatalytic activity oxidation C-H bonds carboxylic acids, ketones, alcohols, respectively. Notably, metallic Au species, functioning solid-state electron mediators, can significantly accelerate rate photogenerated electrons holes between photocatalysts. As verified by trapping experiments paramagnetic resonance, results indicate that h+ ·O2- serve primary active species in process. study provides perspectives on development high-performance perovskite-based field organic synthesis.

Язык: Английский

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Construction of CsPbBr3/P25 S-scheme heterostructure for photocatalytic selective aerobic oxidation of aromatic alcohols

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106007 - 106007

Опубликована: Фев. 1, 2025

Язык: Английский

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CsPbBr₃-Modified Oxygen-Doped g-C₃N₄ Heterojunctions for Sulfurization of Alkenes to Sulfoxides

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

Z-scheme heterostructures have become a novel class of photocatalysts that hold substantial significance in the domains environmental and energy-related applications. This can be attributed to their distinctive charge separation transfer pathways, which endow heterojunctions with robust redox capabilities. In this paper, we report straightforward method for fabricating perovskite-based heterojunction by integrating CsPbBr3 nanocrystals oxygen-doped g-C3N4 (OCN). exhibited high photocatalytic activity selective sulfoxidation reaction alkenes thiols. Under aerobic conditions, moderate excellent yields high-value sulfoxides good functional compatibilities were achieved. showcases outstanding performance, remarkable stability, operational simplicity, atom efficiency, eco-friendly energy sources. The formation was corroborated situ X-ray photoelectron spectroscopy. These spectra revealed negative shift binding energies Cs 1s, Pb 4f, Br 3d CsPbBr3, while positive observed C N O 1s OCN upon light irradiation. specific pattern effectively promotes electron from is conducive electrons holes, thereby enhancing photoredox catalytic activity.

Язык: Английский

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Ru3+-doped lead-free perovskite Cs3Bi2Br9 for photocatalytic selective oxidation of sulfides to sulfoxides using trace water as an oxygen source

Journal of Catalysis, Год журнала: 2025, Номер 443, С. 115945 - 115945

Опубликована: Янв. 8, 2025

Язык: Английский

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Halide Perovskite Photocatalysts for Clean Fuel Production and Organic Synthesis: Opportunities and Challenges

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 9, 2025

Abstract The need to constrain the use of fossil fuels causing global warming is motivating development a variety photocatalysts for solar‐to‐fuel generation and chemical synthesis. In particular, semiconductor‐based have been extensively exploited in solar‐driven organic synthesis, carbon dioxide (CO 2 ) conversion into value‐added products, hydrogen (H from water O) splitting. Recently, metal halide perovskites (MHPs) emerged as an important class semiconductors heterogeneous photocatalysis owing their interesting properties. Despite key issues with long‐term stability degradation polar solvents due ionic character, there has significant progress perovskite‐based improving performance gas liquid phases. This review discusses state‐of‐the‐art using photoelectrocatalysis production halogen acid solutions, CO reduction chemicals, various transformations. different types used, design strategies overcome instability solvents, efficiencies achieved are discussed. Furthermore, outstanding challenges associated electrolytes how can be improved

Язык: Английский

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Piezo-phototronic and pyro-phototronic effects enabled advanced high-performance metal halide perovskite optoelectronics

Materials Today Electronics, Год журнала: 2024, Номер 9, С. 100110 - 100110

Опубликована: Июль 19, 2024

In recent years, metal halide perovskite materials have been successfully adopted in various optoelectronic applications, owing to their remarkable material properties. Notably, the piezo-phototronic effect (a coining of piezoelectric, semiconducting and photoexcitation properties) can be expected further enhance device performances. this review, we provide a comprehensive overview advancements through utilization pyro-phototronic effect. Firstly, molecular structure, growing methods, optical piezoelectric properties are discussed. Subsequently, review delves into fundamental principles practical applications effect, emphasizing its significance diverse fields such as. Thirdly, studies on spintronics, light emission surveyed. Last but not least, challenges that may hinder development perovskites summarized. This emphasizes advances application piezo-/pyro-phototronic perovskite-based devices. It aims understanding as an effective tool performances well inspire potential design for high-performance devices future.

Язык: Английский

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Solid-state synthesis of lead-free perovskite Cs3Bi2Br9 for photocatalytic O2-involved coupling of aldehydes or alcohols to anhydrides

Journal of Catalysis, Год журнала: 2024, Номер unknown, С. 115750 - 115750

Опубликована: Сен. 1, 2024

Язык: Английский

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