Efficient Photocatalytic Overall Water Splitting Induced by the Giant Internal Electric Field of a g-C3 N4 /rGO/PDIP Z-Scheme Heterojunction

© 2021 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 33(2021), 7 vom: 12. Feb., Seite e2007479
1. Verfasser: Chen, Xianjie (VerfasserIn)
Weitere Verfasser: Wang, Jun, Chai, Yongqiang, Zhang, Zijian, Zhu, Yongfa
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article Z-scheme heterostructures graphitic carbon nitride overall water splitting perylene diimide polymer photocatalysis
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520 |a A graphitic carbon nitride/rGO/perylene diimide polymer (g-C3 N4 /rGO/PDIP) Z-scheme heterojunction is successfully constructed to realize high-flux charge transfer and efficient photocatalytic overall water splitting. A giant internal electric field in the Z-scheme junction is built, enabling the charge separation efficiency to be enhanced dramatically by 8.5 times. Thus, g-C3 N4 /rGO/PDIP presents an efficient and stable photocatalytic overall water splitting activity with H2 and O2 evolution rate of 15.80 and 7.80 µmol h-1 , respectively, ≈12.1 times higher than g-C3 N4 nanosheets. Meanwhile, a notable quantum efficiency of 4.94% at 420 nm and solar-to-hydrogen energy-conversion efficiency of 0.30% are achieved, prominently surpassing many reported g-C3 N4 -based photocatalysts. Briefly, this work throws light on enhancing the internal electric field by interface control to dramatically improve the photocatalytic performance 
650 4 |a Journal Article 
650 4 |a Z-scheme heterostructures 
650 4 |a graphitic carbon nitride 
650 4 |a overall water splitting 
650 4 |a perylene diimide polymer 
650 4 |a photocatalysis 
700 1 |a Wang, Jun  |e verfasserin  |4 aut 
700 1 |a Chai, Yongqiang  |e verfasserin  |4 aut 
700 1 |a Zhang, Zijian  |e verfasserin  |4 aut 
700 1 |a Zhu, Yongfa  |e verfasserin  |4 aut 
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