Covalent organic frameworks for direct photosynthesis of hydrogen peroxide from water, air and sunlight.

ABSTRACT: Solar-driven photosynthesis is a sustainable process for the production of hydrogen peroxide, the efficiency of which is plagued by side reactions. Metal-free covalent organic frameworks (COFs) that can form suitable intermediates and inhibit side reactions show great promise to photo-synthesize H₂O₂. However, the insufficient formation and separation/transfer of photogenerated charges in such materials restricts the efficiency of H₂O₂ production. Herein, we provide a strategy for the design of donor-acceptor COFs to greatly boost H₂O₂ photosynthesis. We demonstrate that the optimal intramolecular polarity of COFs, achieved by using suitable amounts of phenyl groups as electron donors, can maximize the free charge generation

SUBMITTER: Liu F 

PROVIDER: S-EPMC10356944 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature