Research progress on hydrogen peroxide photosynthesis from only water and oxygen over polymer photocatalysts

Abstract Hydrogen peroxide (H 2 O 2 ) photosynthesis from water and oxygen is a green and sustainable process with considerable promise as an alternative to the traditional anthraquinone method and an important method to realize decentralized production. Recently, several photocatalysts for H 2 O 2 photosynthesis have been developed. Among these, polymer‐based photocatalysts with flexible and tunable structural characteristics, broad optical responses and the potential for efficient H 2 O 2 generation have attracted increasing attention. Herein, we critically review the state‐of‐the‐art progress in polymer‐based photocatalysts for H 2 O 2 photosynthesis using only water and oxygen. Notably, enhancement strategies for H 2 O 2 production over photocatalysts are emphasized, including carbon nitride, donor–acceptor conjugated frameworks and supramolecular polymers, and the relationship between the material structure and H 2 O 2 production performance is also discussed. Finally, we discuss the challenges for further studies on H 2 O 2 photosynthesis over polymer‐based photocatalysts.