3D Hierarchical ZnIn 2 S 4 Nanosheets with Rich Zn Vacancies Boosting Photocatalytic CO 2 Reduction
Jilin University · State Key Laboratory of Inorganic Synthesis and Preparative Chemistry · +1 more institution
Abstract
Abstract Zinc vacancy (V Zn ) is successfully introduced into 3D hierarchical ZnIn 2 S 4 (3D‐ZIS). The photo‐electrochemical experiments demonstrate that the charge separation and carrier transfer are more efficient in the 3D‐ZIS with rich V Zn . Of note, for the first time, it is found that V Zn can decrease the carrier transport activation energy (CTAE), from 1.14 eV for Bulk‐ZIS (Bulk ZnIn 2 S 4 ) to 0.93 eV for 3D‐ZIS, which may provide a feasible platform for further understanding the mechanism of photocatalytic CO 2 reduction. In situ Fourier transform infrared (FT‐IR) results reveal that the presence of rich V Zn ensures CO 2 chemical activation, promoting single‐electron reduction of CO 2 to CO 2 − .…
Citation impact
- FWCI
- 12.01
- Percentile
- 100%
- References
- 47
Authors
10- YHYiqiang He
Jilin University, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- HRHeng Rao
Jilin University, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- KSKepeng Song
King Abdullah University of Science and Technology
- JLJixin Li
Jilin University, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- YYYing Yu
Jilin University, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
Topics & keywords
- Photocatalysis
- Materials science
- Fourier transform infrared spectroscopy
- Vacancy defect
- Desorption
- Zinc
- Chemical engineering
- Infrared
- Affordable and clean energy