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|a 10.1021/acs.chemmater.3c01635
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|a pubmed24n1550.xml
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|a eng
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|a Baghdadi, Yasmine
|e verfasserin
|4 aut
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|a Cs3Bi2Br9/g-C3N4 Direct Z-Scheme Heterojunction for Enhanced Photocatalytic Reduction of CO2 to CO
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 27.09.2024
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|a published: Electronic-eCollection
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|a figshare: 10.6084/m9.figshare.24305635
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors. Published by American Chemical Society.
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|a Lead-free halide perovskite derivative Cs3Bi2Br9 has recently been found to possess optoelectronic properties suitable for photocatalytic CO2 reduction reactions to CO. However, further work needs to be performed to boost charge separation for improving the overall efficiency of the photocatalyst. This report demonstrates the synthesis of a hybrid inorganic/organic heterojunction between Cs3Bi2Br9 and g-C3N4 at different ratios, achieved by growing Cs3Bi2Br9 crystals on the surface of g-C3N4 using a straightforward antisolvent crystallization method. The synthesized powders showed enhanced gas-phase photocatalytic CO2 reduction in the absence of hole scavengers of 14.22 (±1.24) μmol CO g-1 h-1 with 40 wt % Cs3Bi2Br9 compared with 1.89 (±0.72) and 5.58 (±0.14) μmol CO g-1 h-1 for pure g-C3N4 and Cs3Bi2Br9, respectively. Photoelectrochemical measurements also showed enhanced photocurrent in the 40 wt % Cs3Bi2Br9 composite, demonstrating enhanced charge separation. In addition, stability tests demonstrated structural stability upon the formation of a heterojunction, even after 15 h of illumination. Band structure alignment and selective metal deposition studies indicated the formation of a direct Z-scheme heterojunction between the two semiconductors, which boosted charge separation. These findings support the potential of hybrid organic/inorganic g-C3N4/Cs3Bi2Br9 Z-scheme photocatalyst for enhanced CO2 photocatalytic activity and improved stability
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|a Journal Article
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|a Temerov, Filipp
|e verfasserin
|4 aut
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1 |
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|a Cui, Junyi
|e verfasserin
|4 aut
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|a Daboczi, Matyas
|e verfasserin
|4 aut
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|a Rattner, Eduardo
|e verfasserin
|4 aut
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|a Sena, Michael Segundo
|e verfasserin
|4 aut
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|a Itskou, Ioanna
|e verfasserin
|4 aut
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| 700 |
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|a Eslava, Salvador
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Chemistry of materials : a publication of the American Chemical Society
|d 1998
|g 35(2023), 20 vom: 24. Okt., Seite 8607-8620
|w (DE-627)NLM098194763
|x 0897-4756
|7 nnns
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| 773 |
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|g volume:35
|g year:2023
|g number:20
|g day:24
|g month:10
|g pages:8607-8620
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|u http://dx.doi.org/10.1021/acs.chemmater.3c01635
|3 Volltext
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