Photocatalytic Oxidation of Tetrahydro Furfuryl Alcohol over Bimetallic Synergistic Pd-Sm-Porphyrin Metal–Organic Framework under Visible Light

The efficient transformation of biomass resources into valuable chemicals by using low-energy methods represents a promising approach to advancing sustainable development. This study introduces a novel three-dimensional porphyrin metal-organic framework (PMOF) for the biomass conversion of tetrahydrofurfuryl alcohol (THFA) to γ-butyrolactone (BLT). Pd²⁺ was introduced into the porphyrin ring center of the monometallic Sm-PMOFs, and the synergistic effect of the bimetal greatly enhanced the photoresponsive ability, realizing the effective separation of photogenerated electrons and holes in the porphyrin-blocked organics, and solved the intrinsic defects of traditional photocatalysts. Additionally, an accurate reaction mechanism was proposed by density functional theory (DFT) calculations, thereby making the conversion of THFA to BLT more controllable.