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- W4386101327 abstract "Refining carrier transfer in bandgap-broken heterojunctions, which consist of two semiconductors with broken bandgaps, is crucial yet highly challenging for photocatalysis. Herein, we incorporated amorphous carbons (AC) into the bandgap-broken V2O5/GdCrO3 heterojunctions, inducing a linkage effect to facilitate photoexcited carrier transfer. The created V-O-C and Cr-O-C bonds in V2O5-AC-GdCrO3 interfaces show almost identical orbital energies to overcome the broken-gap energy barriers at interfaces. The holes at GdCrO3’s valence band and electrons at V2O5’s conduction band tent to migrating toward the carbon ring of amorphous carbon via Cr-O-C and V-O-C bonds, thereby enhancing carrier separation of bandgap-broken V2O5/AC/GdCrO3 heterojunction. By controlling the relative amount of metal-O-C bonds in the interface, the modulation of charge transfer kinetics was also achieved on V2O5/AC/GdCrO3, resulting in ~7 times higher of H2 generation than V2O5/GdCrO3. The concept could be expanded to the other carbon allotropes, including graphene, carbon nanotube, and graphdiyne conjugated structures, demonstrating a universal strategy in reaching optimal charge transfer of broken-bandgap heterojunctions for photocatalytic H2 production." @default.
- W4386101327 created "2023-08-24" @default.
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- W4386101327 date "2024-01-01" @default.
- W4386101327 modified "2023-10-18" @default.
- W4386101327 title "Linkage effect in the bandgap-broken V2O5-GdCrO3 heterojunction by carbon allotropes for boosting photocatalytic H2 production" @default.
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- W4386101327 doi "https://doi.org/10.1016/j.apcatb.2023.123181" @default.
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