Micro-Environment Programmable Quinoline COFs for High-Performance Photocatalytic H₂O₂ Generation and Benzylamine Coupling.

ABSTRACT: Photocatalytic H₂O₂ synthesis from water and oxygen by covalent organic frameworks (COFs) has attracted much attention currently. However, conventional COFs often suffer from insufficient stability and activity due to the unclear structure-activity relationship mechanisms. Herein, a series of quinoline-linked COFs-R (-R = -OH, -OMe, -H, -Br, -CN) synthesized via multi-component reactions (MCRs) is reported to systematically modulate their pore microenvironments and enhance photocatalytic performance. Experimental results reveal that the electron-donating capacity of substituents significantly enhances charge separation efficiency, with H₂O₂ production activity exhibiting a negative correlation to the Hammett parameters (σ_p) of the -R g

SUBMITTER: Guo M 

PROVIDER: S-EPMC12412608 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature