Chem. Commun., 2026, Accepted Manuscript DOI: 10.1039/D6CC01335J, Communication Zelin Yang, Ze Luo, Cheng-Yu Yang, Zhong-Yuan Zhang, Haibo Huang, Hua Tang Rational design of electron-deficient covalent organic frameworks (COFs) via strategic integration of ketone and sulfone moieties is demonstrated as an effective molecular engineering strategy for photocatalytic hydrogen peroxide production. This...