Bifunctional metal–organic frameworks toward photocatalytic CO₂ reduction by post-synthetic ligand exchange

• Main Authors: Chen, Xiao-Hui, Wei, Qin, Hong, Jin-Dui, Xu, Rong, Zhou, Tian-Hua
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Chemical engineering; Photocatalysis; Metal–organic Framework
• Online Access: https://hdl.handle.net/10356/152191
• Institution: Nanyang Technological University

Photocatalytic reduction of CO2 to useful fuel has been identified as a promising strategy to address the energy and environmental issues. Development of well-defined photocatalysts toward CO2 reduction has attracted increasing interest to gain insight into the reactive mechanism. Herein, by post-synthetic ligand exchange, a bifunctional Re-based metal–organic framework (MOF) was successfully prepared. It not only serves as a photosensitizer but also acts as a catalyst for photochemical reduction of CO2. Furthermore, it is found that a Re-based MOF containing 30% Re-based ligands displays improved activity compared to MOF with 100% Re-based ligands. This work provides clues to the design and synthesis of bifunctional MOFs toward photocatalytic CO2 reduction.