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• W4306631536 abstract "Step-scheme (S-scheme) heterojunctions have been extensively studied in photocatalytic carbon dioxide (CO2 ) reduction due to their excellent charge separation and high redox ability. The built-in electric field at the interface of a S-scheme heterojunction serves as the driving force for charge transfer, however, the poor interfacial contact greatly restricts the carrier migration rate. Herein, we synthesized the g-C3 N4 /Bi19 Br3 S27 S-scheme heterostructure through in situ deposition of Bi19 Br3 S27 (BBS) on porous g-C3 N4 (P-CN) nanosheets. The C-S bonds formed at the interface help to enhance the built-in electric field, thereby promoting the charge transfer and separation. As a result, the CO2 reduction reaction performance of 10 %Bi19 Br3 S27 /g-C3 N4 (BBS/P-CN) reaches 32.78 μmol g-1 h-1 , which is 341.4 and 18.7 times higher than that of pure BBS and P-CN, respectively. X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) prove the presence of chemical bonds (C-S) between the P-CN and BBS. The S-scheme charge-transfer mechanism was analyzed via XPS and density functional theory (DFT) calculations. This work provides a new idea for designing heterojunction photocatalysts with interfacial chemical bonds to achieve high charge-transfer and catalytic activity." @default.
• W4306631536 created "2022-10-18" @default.
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• W4306631536 date "2022-11-27" @default.
• W4306631536 modified "2023-10-10" @default.
• W4306631536 title "Interfacial C−S Bonds of g‐C ₃ N ₄ /Bi ₁₉ Br ₃ S ₂₇ S‐Scheme Heterojunction for Enhanced Photocatalytic CO ₂ Reduction**" @default.
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• W4306631536 doi "https://doi.org/10.1002/chem.202202669" @default.
• W4306631536 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36251746" @default.
• W4306631536 hasPublicationYear "2022" @default.
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