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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
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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). |
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