Constructing Photocatalytic Covalent Organic Frameworks with Aliphatic Linkers

Photocatalytic covalent organic frameworks (COFs) are typically constructed with rigid aromatic linkers for crystallinity and extended π-conjugation. However, the essential hydrophobicity of the aromatic backbone can limit their performances in water-based photocatalytic reactions. Here, we for the first time report the synthesis of hydrophilic COFs with aliphatic linkers [tartaric acid dihydrazide (TAH) and butanedioic acid dihydrazide] that can function as efficient photocatalysts for H2O2 and H2 evolution. In these hydrophilic aliphatic linkers, the specific multiple hydrogen bonding networks not only enhance crystallization but also ensure an ideal compatibility of crystallinity, hydrophilicity, and light…

• NN
  National Natural Science Foundation of China

  Awards: 22338006, 22208100, 22375062, 2233000296, 92356301
• SE
  Shanghai Education Development Foundation

  Award: 22CGA32
• SA
  Science and Technology Commission of Shanghai Municipality

  Awards: 22PJ1402400, 21JC1401700, 22YF1410400
• CA
  China Academy of Space Technology

  Award: 2023QNRC001
• FR
  Fundamental Research Funds for the Central Universities