Triazine-cored donor–acceptor covalent organic framework promotes highly efficient photocatalytic synthesis of H2O2

A D–A COF (TPB–TPT-COF) with triazine groups enabled photocatalytic H 2 O 2 production at 6740 μmol g −1 h −1 without sacrificial agents. DFT and experiments show its D–A structure boosts carrier separation and transport for enhanced performance.