Synthesis and photocatalytic CO₂ reduction performance of metalloporphyrin and <sc> H₅[PMo₁₀V₂O₄₀]∙34.5H₂O </sc> composite catalyst

Inspired by the structural motifs of chlorophyll, a series of bio-inspired Z-scheme heterojunction photocatalysts yPMo10V2/CoTPyP were constructed by integrating metalloporphyrin CoTPyP with H5[PMo10V2O40]·34.5H2O. The optimized 0.1PMo10V2/CoTPyP heterojunction exhibits remarkable photocatalytic CO2 reduction performance, achieving a CO production rate of 316.88 μmol·g−1·h−1, which is 3.7 times and 5.9 times higher than those of CoTPyP and H2TPyP, respectively. Systematic characterization confirms that the Z-scheme electron transfer mechanism effectively promotes charge separation while maintaining high redox capability. This work demonstrates the feasibility of mimicking natural photosynthesis through rational material design and provides valuable insights for developing efficient artificial photosynthetic systems.