Amidoxime‐Functionalized sp 2 ‐Carbon‐Conjugated Covalent Organic Frameworks for Overall Photocatalytic Hydrogen Peroxide Production

Abstract Cyano‐functionalized sp 2 ‐carbon‐conjugated covalent organic frameworks (CN‐COFs) have been considered as promising candidates for artificial photosynthesis of hydrogen peroxide (H 2 O 2 ). Nevertheless, the performance of CN‐COFs is inherently limited by constrained oxygen capture capacity, insufficient charge separation, and rapid carrier recombination. Herein, the study rationally reports a strategy for integrating amidoxime groups (AO) into a COF through one‐step cyano hydrolysis process to increase photocatalytic H 2 O 2 production. Combined simulations and characterizations reveal that introducing AO groups enhances hydrophilicity, stabilizes adsorbed Oxygen (O 2 ) via hydrogen bonding,…

• NN
  National Natural Science Foundation of China

  Awards: 22465001, B16017, 22271093, 21971064, 22105034, 2018SHZDZX03
• EC
  East China University of Science and Technology
• FR
  Fundamental Research Funds for the Central Universities

  Awards: 2018SHZDZX03, B16017, 222201717003, 50321101918001