Pyrene-4,5,9,10-Tetraone-Based Porous Aromatic Frameworks for Photocatalytic Production of Hydrogen Peroxide

Abstract

Three pyrene-4,5,9,10-tetraone-based porous aromatic frameworks (PT-PAFs) are synthesized and their photocatalytic properties for H₂O₂ production are studied. It is found that the combination of pyrene-4,5,9,10-tetraone with anthraquinone affords an efficient PT-PAF photocatalyst (PAF-371) for H₂O₂ production, which achieves production rates of 3791 µmol g⁻¹ h⁻¹ (with sacrificial reagent) and 923 µmol g⁻¹ h⁻¹ (without sacrificial reagent) from water and oxygen under visible light irradiation. This work demonstrates that pyrene-4,5,9,10-tetraone molecule could be introduced into PAF materials to construct efficient organic semiconductor photocatalysts for H₂O₂ production.