Regulation of charge carrier transportation in D-π-A type covalent organic frameworks for promoting photocatalytic H₂O₂ production.

ABSTRACT: Covalent Organic Frameworks (COFs) with diverse conjugated structures are extensively utilized as promising photocatalysts for hydrogen peroxide (H₂O₂) production. However, the current applications are constrained by the rapid recombination of photogenerated carriers and the slow reaction kinetics. To address these issues, in this study, we design and prepare four COF photocatalysts with a distinct donor-π-acceptor (D-π-A) structure to regulate the photogenerated charge carrier transportation. Significantly, Tf-TAPT-COF containing triazine units shows the most elevated rate of H₂O₂ evolution. This is primarily attributed to the electron-withdrawing capacity of N centers in COFs following the order: triazine > pyrimidine > pyridine > benzene, lead

SUBMITTER: Ma H 

PROVIDER: S-EPMC12360219 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature