Accelerated confined mass transfer in piezoelectric semiconducting metal-organic frameworks for H₂O₂ piezo-photosynthesis.

ABSTRACT: The piezo-photocatalytic O₂ reduction reaction offers a promising pathway towards H₂O₂ synthesis. However, in addition to rapid recombination of photogenerated electrons and holes, this gas-consuming reaction is inherently limited by O₂ dissolution and mass transfer dynamics. Here, energy band structures and dipole moments of piezoelectric semiconducting UiO-66 metal-organic frameworks (MOFs) are engineered by modulating functional groups (-NH₂, -CH₃, -OH, -NO₂ and -F₄) and metal nodes (Hf and Zr). This fine-tuning of MOF building blocks leads to an enhanced piezoelectric coefficient, gas capacity and light absorption to facilitate subsequent piezo-photocatalysis. Furthermore, the tunable band structure

SUBMITTER: Lan Y 

PROVIDER: S-EPMC12621135 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature