A Constructed 2D-Cu2O/Carbon Nitride Heterojunction for Efficient CO2 Photoreduction to CH4
Abstract
With the dual challenges of global energy scarcity and worsening environmental issues, the efficient and selective conversion of CO2 into CH4-an environmentally friendly fuel with high energy density—offers considerable application potential. In this study, a 2D-Cu2O/carbon nitride (2D-Cu2O/CN) heterojunction catalyst was successfully prepared. Notably, 2D-Cu2O/CN shows enhanced light absorption capacity, reduced charge-transfer resistance, and efficient separation of photogenerated electron–hole pairs. It exhibits a CH4 yield of 14.1 μmol·g−1·h−1, 4-fold higher than that of CN. This study provides a feasible approach for the design of high-efficiency photocatalysts for CO2 reduction to CH4.
Fields of Study & Subjects
Advanced Photocatalysis Techniques
TiO2 Photocatalysis and Solar Cells
CO2 Reduction Techniques and Catalysts
Publication details
- Journal / source
- C – Journal of Carbon Research
- Publisher
- MDPI AG
- Volume
- 12
- Issue
- 1
- Pages
- 6–6
- Publication date
- 18 January 2026
- Language
- EN