Coupled visible-light driven photocatalytic reactions over porphyrin-based MOF materials

Coupling photocatalytic reaction in a reaction system, as a means of fully utilizing photogenerated electrons and holes, is a promising strategy in the field of photocatalysis. In this study, three MOFs based on tetrakis (4-carboxylphenyl) porphyrin (TCPP) were successfully synthesized by a solvothermal method, and their structures and photocatalytic performances were characterized. Among these MOFs, Zr-Ni PMOF has excellent photocatalytic coupling properties for simultaneous generation of H2 (20.7 μmol h−1) and the selective oxidation of RPhCH2OH to RPhCHO (19.9 μmol h−1), as well as photocatalytic conversion of PhCH2OH into PhCHO pairing with CO2 reduction. It is hoped that this work can provide essential insights for the design and development of efficient MOFs-based photocatalytic system.