Bifunctional metal–organic frameworks toward photocatalytic CO₂reduction by post-synthetic ligand exchange

Xiao-Hui Chen¹，Qin Wei¹，Jin-Dui Hong²，Rong Xu²，Tian-Hua Zhou³

1. School of Chemical Engineering, Fuzhou University2. School of Chemical and Biomedical Engineering, Nanyang Technological University3. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences

摘 要：Photocatalytic reduction of CO₂ to useful fuel has been identified as a promising strategy to address the energy and environmental issues. Development of welldefined 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.

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