气候变化领域集成服务门户(CCPortal): Defective g-C3N4/covalent organic framework van der Waals heterojunction toward highly efficient S-scheme CO2 photoreduction

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DOI	10.1016/j.apcatb.2021.120814
	Defective g-C3N4/covalent organic framework van der Waals heterojunction toward highly efficient S-scheme CO2 photoreduction
	Wang, Jiangpeng; Yu, Yue; Cui, Jiayi; Li, Xinran; Zhang, Yilin; Wang, Chao; Yu, Xuelian; Ye, Jinhua
发表日期	2022
ISSN	0926-3373
EISSN	1873-3883
卷号	301
英文摘要	In this work, a novel van der Waals (vdW) heterojunction composite combining g-C3N4 with nitrogen vacancies and Tp-Tta COF manifests effective interface contact area and excellent photocatalytic CO2 reduction performance. First-principles density functional theory calculation and experimental results suggest that the presence of nitrogen vacancies in g-C3N4 can widen the Fermi level gap between C3N4 (NH) and Tp-Tta COF, promoting the recombination of invalid photogenerated carriers through S-scheme pathway. Benefitted from the accelerated transfer of photogenerated charges at the vdW heterostructure interface, the deactivation of oxygen vacancies in C3N4 (NH)/COF is prevented and much higher photocatalytic activity and stability are obtained. The efficient electron transfer and the affinity of Tp-Tta for CO2 are beneficial to the enhanced CO selectivity. This work provides insights for the design of S-scheme heterojunction photocatalyst for CO2 reduction.
英文关键词	VdW heterojunction; CO2 reduction; S-scheme heterojunction; Nitrogen vacancy; Covalent organic frameworks
语种	英语
WOS研究方向	Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000712025800003
来源期刊	APPLIED CATALYSIS B-ENVIRONMENTAL
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281376
作者单位	China University of Geosciences; National Institute for Materials Science
推荐引用方式 GB/T 7714	Wang, Jiangpeng,Yu, Yue,Cui, Jiayi,et al. Defective g-C3N4/covalent organic framework van der Waals heterojunction toward highly efficient S-scheme CO2 photoreduction[J],2022,301.
APA	Wang, Jiangpeng.,Yu, Yue.,Cui, Jiayi.,Li, Xinran.,Zhang, Yilin.,...&Ye, Jinhua.(2022).Defective g-C3N4/covalent organic framework van der Waals heterojunction toward highly efficient S-scheme CO2 photoreduction.APPLIED CATALYSIS B-ENVIRONMENTAL,301.
MLA	Wang, Jiangpeng,et al."Defective g-C3N4/covalent organic framework van der Waals heterojunction toward highly efficient S-scheme CO2 photoreduction".APPLIED CATALYSIS B-ENVIRONMENTAL 301(2022).