Z‑Scheme Bi/Bi2O2CO3/Layered Double-Hydroxide Nanosheet Heterojunctions for Photocatalytic CO2 Reduction under Visible Light

A Z-scheme Bi2O2CO3/Bi/NiAl-LDH (BBOC/LDH) nanosheet heterojunction was fabricated by a hydrothermal method. The BBOC/LDH composites exhibited superior performance for photocatalytic CO2 reduction. A maximum yield of CH4 with the value of 56.64 μmol/gcat was achieved on 20%BBOC/LDH composite, which...

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Bibliographic Details
Published inACS applied nano materials Vol. 4; no. 5; pp. 4902 - 4911
Main Authors Miao, Yu-fang, Guo, Rui-tang, Gu, Jing-wen, Liu, Yuan-zhen, Wu, Gui-lin, Duan, Chao-peng, Pan, Wei-guo
Format Journal Article
LanguageEnglish
Published American Chemical Society 28.05.2021
Subjects
Bi2O2CO3/Bi/NiAl-LDH heterojunction
Z-scheme
SPR effect
nanosheet
photocatalytic CO2 reduction
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Summary:A Z-scheme Bi2O2CO3/Bi/NiAl-LDH (BBOC/LDH) nanosheet heterojunction was fabricated by a hydrothermal method. The BBOC/LDH composites exhibited superior performance for photocatalytic CO2 reduction. A maximum yield of CH4 with the value of 56.64 μmol/gcat was achieved on 20%BBOC/LDH composite, which was 3.9-fold higher than pure LDH. The larger specific surface area, and the efficient separation of photoexcited electrons and holes attributed to the metal Bi SPR effect and Z-scheme heterojunction, enhanced the CO2 photoreduction performance.
ISSN:2574-0970
2574-0970
DOI:10.1021/acsanm.1c00458