Emerging S‐Scheme Photocatalyst

Advanced Materials, Journal Year: 2021, Volume and Issue: 34(11)

Published: Dec. 28, 2021

Photocatalysis is a green technology to use ubiquitous and intermittent sunlight. The emerging S-scheme heterojunction has demonstrated its superiority in photocatalysis. This article covers the state-of-the-art progress provides new insights into general designing criteria. It starts with challenges confronted by single photocatalyst from perspective of energy dissipation borrowing common behaviors dye molecule. Subsequently, other problems faced are summarized. Then viable solution for these construction heterojunctions. To overcome mistakes type-II Z-scheme heterojunctions, proposed underlying reaction mechanism Afterward, design principles four types heterojunctions suggested. Following this, direct characterization techniques testifying charge transfer presented. Finally, different photocatalytic applications Specifically, this work endeavors clarify critical understanding on curved Fermi level interface, which can help strengthen advance fundamental theories Moreover, current prospects critically discussed.

Language: Английский

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Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

Environmental Chemistry Letters, Journal Year: 2021, Volume and Issue: 19(6), P. 4563 - 4601

Published: Aug. 30, 2021

Language: Английский

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Construction of 2D S‐Scheme Heterojunction Photocatalyst

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(8)

Published: Nov. 22, 2023

Abstract Semiconductor photocatalytic technology holds immense promise for converting sustainable solar energy into chemically storable energy, with significant applications in the realms of and environment. However, inherent issue rapid recombination photogenerated electrons holes hinders performance single photocatalysts. To overcome this challenge, construction 2D S‐scheme heterojunction photocatalysts emerges as an effective strategy. The deliberate design dimensionality ensures a substantial interfacial area; while, charge transfer mechanism facilitates efficient separation maximizes redox capabilities. This review commences fresh perspective on heterojunctions, followed by comprehensive exploration preparation methods characterization techniques. Subsequently, recent advancements are summarized. Notably, behind activity enhancement is elucidated. Finally, prospects development presented.

Language: Английский

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S-scheme heterojunction photocatalysts for CO2 reduction

Matter, Journal Year: 2022, Volume and Issue: 5(12), P. 4187 - 4211

Published: Dec. 1, 2022

Language: Английский

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Challenges of Z-scheme photocatalytic mechanisms

Trends in Chemistry, Journal Year: 2022, Volume and Issue: 4(11), P. 973 - 983

Published: Sept. 16, 2022

Language: Английский

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Construction of core–shell FeS2@ZnIn2S4 hollow hierarchical structure S-scheme heterojunction for boosted photothermal-assisted photocatalytic H2 production

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 454, P. 140053 - 140053

Published: Oct. 30, 2022

Language: Английский

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Verifying the Charge‐Transfer Mechanism in S‐Scheme Heterojunctions Using Femtosecond Transient Absorption Spectroscopy

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(8)

Published: Dec. 29, 2022

The S-scheme heterojunction is flourishing in photocatalysis because it concurrently realizes separated charge carriers and sufficient redox ability. Steady-state transfer has been confirmed by other methods. However, an essential part, the dynamics heterojunctions, still missing. To compensate, a series of cadmium sulfide/pyrene-alt-difluorinated benzothiadiazole heterojunctions were constructed photophysical processes investigated with femtosecond transient absorption spectroscopy. Encouragingly, interfacial charge-transfer signal was detected spectra heterojunction, which provides solid evidence for to complement results from well-established Furthermore, lifetime calculated be ca. 78.6 ps. Moreover, photocatalysts exhibit higher photocatalytic conversion 1,2-diols H2 production rates than bare sulfide.

Language: Английский

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Solar fuel generation over nature-inspired recyclable TiO2/g-C3N4 S-scheme hierarchical thin-film photocatalyst

Journal of Material Science and Technology, Journal Year: 2021, Volume and Issue: 112, P. 1 - 10

Published: Dec. 12, 2021

Language: Английский

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Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(29)

Published: Feb. 23, 2022

Abstract Sparked by natural photosynthesis, solar photocatalysis using metal‐free graphitic carbon nitride (g‐C 3 N 4 ) with appealing electronic structure has turned up as the most captivating technique to quest for sustainable energy generation and pollution‐free environment. Nonetheless, low‐dimensional g‐C is thwarted from sluggish kinetics rapid recombination of photogenerated carriers upon light irradiation. Among multifarious modification strategies, engineering 2D cocatalysts anticipated accelerate redox kinetics, augment active sites ameliorate electron–hole separation boosted activity thanks its face‐to‐face contact surface. It timely technological significance review 2D/2D interfaces state‐of‐the‐art cocatalysts, spanning carbon‐containing phosphorus‐containing, metal dichalcogenide, other cocatalysts. Fundamental principles each photocatalytic application will be introduced. Thereafter, recent advances cocatalyst‐mediated systems critically evaluated based on their interfacial engineering, emerging roles, impacts toward stability catalytic efficiency. Importantly, mechanistic insights into charge dynamics structure–performance relationship deciphered. Last, noteworthy research directions are prospected deliver insightful ideas future development . Overall, this serve a scaffold cornerstone in designing dimensionality‐dependent cocatalyst‐assisted renewable ecologically green

Language: Английский

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A review of updated S-scheme heterojunction photocatalysts

Journal of Material Science and Technology, Journal Year: 2023, Volume and Issue: 177, P. 142 - 180

Published: Sept. 26, 2023

Language: Английский

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