Covalent Organic Frameworks Enhance Photocatalytic Hydrogen Peroxide Production through Synergistic Effects

Covalent organic frameworks (COFs) are promising photocatalytic materials due to their high crystallinity, ordered porous structures, and customizable functionality. However, their photocatalytic performance is often hampered by challenges such as charge carrier recombination and suboptimal reactant adsorption. In this study, we aim to enhance the photocatalytic hydrogen peroxide production performance by introducing fluorine atoms into the pore walls of an imine-bonded COF, synthesizing two imine-bonded COFs: HITMS-COF-20 and HITMS-COF-21. The high electronegativity and small atomic size of fluorine atoms significantly improve light absorption, exciton delocalization, charge-carrier separation, and oxygen…

• NN
  National Natural Science Foundation of China

  Award: 22375076
• HI
  Harbin Institute of Technology
• NK
  National Key Research and Development Program of China

  Award: 2021YFE0105800