Promoting Solar‐driven Hydrogen Peroxide Production over Thiazole‐based Conjugated Polymers via Generating and Converting Singlet Oxygen

Abstract Solar‐driven synthesis of hydrogen peroxide (H 2 O 2 ) from water and air provides a low‐cost and eco‐friendly alternative route to the traditional anthraquinone method. Herein, four thiazole‐based conjugated polymers (Tz‐CPs: TTz , BTz , TBTz and BBTz ) are synthesized via aldimine condensation. BBTz exhibits the highest H 2 O 2 production rate of 7274 μmol g −1 h −1 in pure water. Further, the reaction path is analyzed by electron paramagnetic resonance (EPR), in situ diffuse reflectance infrared Fourier transform (DRIFT) and theoretical calculation, highlighting the prominent role of singlet oxygen ( 1 O 2 ). The generation of 1 O 2 occurs through the oxidation of superoxide radical (⋅O 2 − ) and…

• NN
  National Natural Science Foundation of China

  Award: 51922081
• NK
  National Key Research and Development Program of China

  Award: 2022YFE0114800