Boosting the photocatalytic H₂O₂ production of covalent organic frameworks with a heteroatom-locked acceptor and gas diffusion system.

ABSTRACT: Simultaneously improving charge carrier separation and surface reaction efficiency is crucial for enhancing the photocatalytic H₂O₂ production efficiency of covalent organic frameworks (COFs). Here, a heteroatom-lock strategy is introduced into the acceptor structure of COFs, with the "lock" effect to enhance the coplanarity and conjugation, and the "heteroatom" effect to improve the O₂ adsorption. It turns out that the photocatalytic H₂O₂ production yield of the N-heteroatom locked COF (2.08 mmol g^-1 h^-1 under pure water and air conditions) is 2.1 times that of the S-heteroatom locked COF and 4.7 times that of the original COF. Experimental results and theoretical calculations reveal that the heteroatom-lock-indu

SUBMITTER: Nan Q 

PROVIDER: S-EPMC12621264 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature