Chem. Commun., 2025, Accepted Manuscript DOI: 10.1039/D5CC05365J, Communication Yao Zhang, Kai Yu, Xuefeng Feng, Feng Luo We report here an approach by regulating the substituent of an electron-acceptor in a D-A system for promoting H2O2 photosynthesis from water and air. Without any sacrificial agent, the Cl-substituted...