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Updated: Jul 30, 2025

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light
Published on: June 12, 2019
Overall Photocatalytic CO2 Reduction over Heterogeneous Semiconductor Photocatalysts
Hailing Huo1, Fang Wu2, Erjun Kan1
1MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing School of Science, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.
Abstract:
The overall photocatalytic CO2 reduction reaction (PCRR), which uses solar energy to convert CO2 and H2 O into chemical feedstocks or fuels without sacrificial reagents, plays a momentous role in CO2 utilization and solar energy conversion. However, significant challenges remain in achieving efficient conversion. Researchers have explored various strategies to realize the overall PCRR efficiently. In this Review, we first explain the criteria for evaluating the overall PCRR and then summarize the following strategies developed over the past decade to promote it: self-driving material development, Z-scheme heterojunction construction, cocatalyst loading, heteroatom doping, surface vacancy creation, and carrier-material matching. Finally, we discuss essential future research directions in the field. Through this comprehensive Review, we aim to provide strategic guidance for the development of efficient overall PCRR systems.
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