Photocatalytic CO₂ reduction is fundamentally limited by inefficient utilization of solar energy, particularly low-energy photons. Here, the authors report a nanoscale greenhouse structure (Bi@Fe₂O₃) that enables cascaded full-spectrum solar utilization and enhances solar-driven CO₂ reduction with water to CH₄.
- Xiaofeng Kang
- Mingyu Jiang
- Liejin Guo
