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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Bifunctional TiO2/COF S-scheme photocatalyst with enhanced H2O2 production and furoic acid synthesis mechanism

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 333, P. 122780 - 122780

Published: April 25, 2023

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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Anchoring oxidation co-catalyst over CuMn2O4/graphdiyne S-scheme heterojunction to promote eosin-sensitized photocatalytic hydrogen evolution

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2024, Volume and Issue: 56, P. 88 - 103

Published: Jan. 1, 2024

Language: Английский

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CuInS2 quantum-dot-modified g-C3N4 S-scheme heterojunction photocatalyst for hydrogen production and tetracycline degradation

Journal of Material Science and Technology, Journal Year: 2023, Volume and Issue: 172, P. 145 - 155

Published: Aug. 12, 2023

Language: Английский

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ZnIn2S4-based S-scheme heterojunction photocatalyst

Journal of Material Science and Technology, Journal Year: 2023, Volume and Issue: 167, P. 184 - 204

Published: June 28, 2023

Language: Английский

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In-situ construction of BiOBr/Bi2WO6 S-scheme heterojunction nanoflowers for highly efficient CO2 photoreduction: Regulation of morphology and surface oxygen vacancy

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139493 - 139493

Published: Sept. 30, 2022

Language: Английский

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Understanding the Principles and Applications of Dual Z-Scheme Heterojunctions: How Far Can We Go?

The Journal of Physical Chemistry Letters, Journal Year: 2023, Volume and Issue: 14(4), P. 1029 - 1045

Published: Jan. 24, 2023

In the past seven years, dual Z-scheme heterojunctions evolved as favorable approaches for enhanced charge carrier separation through direct or indirect transfer transportation mechanisms. The dynamics of is major strategy understanding their photoactivity and stability formation distinctive redox centers. currently recognized principles successful fabrication classification in different energy pollution remediation strategies discussed, a universal transfer-type-based Z-schemes that can be adopted S-scheme proposed. Methods used determining proof existence are outlined. Most importantly, new macroscopic N-scheme triple also heterostructures composed four semiconductors proposed generating both oxidatively reductively empowered systems. systems expected to possess properties enable them harvest solar light drive important chemical reactions applications.

Language: Английский

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Femtosecond transient absorption spectroscopy investigation into the electron transfer mechanism in photocatalysis

Chemical Communications, Journal Year: 2022, Volume and Issue: 59(6), P. 688 - 699

Published: Dec. 21, 2022

This feature article introduces the basic principles of femtosecond transient absorption spectroscopy (fs-TAS) and recent advances in application fs-TAS to heterojunction photocatalysts.

Language: Английский

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3D ordered macroporous sulfur-doped g-C3N4/TiO2 S-scheme photocatalysts for efficient H2O2 production in pure water

Journal of Material Science and Technology, Journal Year: 2023, Volume and Issue: 162, P. 1 - 10

Published: May 15, 2023

Language: Английский

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