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- W4294904865 abstract "The construction of interfacial engineered heterojunctions is an effective strategy to broaden the optical response and facilitate charge separation. Herein, a novel 0D/1D Ag 2 S/Sb 2 S 3 heterojunction is prepared by in-situ growth of Ag 2 S quantum dots on Sb 2 S 3 nanorods using a simple hydrothermal approach. The 10% Ag 2 S/Sb 2 S 3 (10AS) heterojunction exhibited efficient CO 2 photoreduction activity with a CH 4 yield of 6.75 µmol g -1 h -1 , which is six times higher than that of pure Sb 2 S 3 NTs. The CH 4 selectivity of the 10AS heterojunction reach 96.1%, owing to the construction of dual-metal sites. Intriguingly, the composite photocatalyst could be extended to infrared light, leading to the full utilization of the incident light. In the 10AS heterojunction, the formation of Ag-S-Sb type covalent bonds is demonstrated by Raman and XAFS tests. The pathways of CO 2 conversion to CH 4 are discussed in detail. Therefore, the work provides a promising strategy for highly selective and efficient CO 2 photoreduction. • A novel S-scheme heterojunction with Ag-Sb bimetallic sites were constructed for conversion CO 2 . • The carriers of S-scheme heterojunctions are effectively exploited to significantly increase the activity of CO 2 reduction. • The Ag-Sb bimetallic sites play an important role in the selective photocatalytic reduction of CO 2 to CH 4 . • Mechanism of selective reduction of CO 2 to CH 4 in Ag-Sb bimetallic sites S-scheme heterojunction discussed." @default.
- W4294904865 created "2022-09-07" @default.
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- W4294904865 date "2022-12-01" @default.
- W4294904865 modified "2023-10-04" @default.
- W4294904865 title "Unveiling the role of Ag-Sb bimetallic S-scheme heterojunction for vis-NIR-light driven selective photoreduction CO2 to CH4" @default.
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- W4294904865 doi "https://doi.org/10.1016/j.apcatb.2022.121960" @default.
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