Chinese Journal of Catalysis ›› 2023, Vol. 50: 343-351.DOI: 10.1016/S1872-2067(23)64453-5

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Highly selective photoreduction of CO2 catalyzed by the encapsulated heterometallic-substituted polyoxometalate into a photo-responsive metal-organic framework

Huijie Li, Manzhou Chi, Xing Xin, Ruijie Wang, Tianfu Liu, Hongjin Lv*(), Guo-Yu Yang   

  1. MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectroic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
  • Received:2023-04-06 Accepted:2023-05-12 Online:2023-07-18 Published:2023-07-25
  • Contact: *E-mail: (H. Lv).
  • Supported by:
    National Natural Science Foundation of China(21871025);National Natural Science Foundation of China(21831001);Recruitment Program of Global Experts (Young Talents);BIT Excellent Young Scholars Research Fund


The highly selective photoreduction of CO2 into valuable chemical fuels such as CO has been considered as an effective strategy to address modern energy and environmental issues. In this work, we have adopted the well-established impregnation approach to construct a P2W15Ni3{Re(CO)3}3 @NU-1000 composite by incorporating heterometallic-substituted P2W15Ni3{Re(CO)3}3 polyoxometalate (POM) into the pores of metal-organic framework (NU-1000) host. Upon light irradiation, the resulting P2W15Ni3{Re(CO)3}3@NU-1000 composite can effectively photocatalyze CO2 reduction, obtaining a CO production of 28982 μmol g-1 with 93.5% selectivity during 10-h photocatalysis. The catalytic system exhibits great long-term recyclability and stability for at least four successive recycles. The proposed photocatalytic mechanism was confirmed by a series of photochemical and spectroscopic analyses.

Key words: CO2 reduction, Polyoxometalate, Metal-organic framework, Heterometallic substitution, Photocatalysis