Development of Economic Benzyl Alcohol-Based Polymers for Full Reaction Photocatalytic Hydrogen Peroxide Production

作者：Danfeng Wang, Zicheng Wang, Heman Xu, Haoxi Wang, Wuzi Zhao, Liujun Jin, Shiyuan Zhou, Guangfeng Liu, Peiyang Gu, Ping Liu · 发表于：ACS Sustainable Chemistry & Engineering · 年份：2025 · DOI：10.1021/acssuschemeng.5c07710 · 被引用次数：3 · 研究领域：Advanced Photocatalysis Techniques、TiO2 Photocatalysis and Solar Cells、Advanced Nanomaterials in Catalysis

Porous organic polymers (POPs) have received extensive attention in photocatalytic hydrogen peroxide (H 2 O 2 ) production. Nonetheless, the main factors contributing to the arrival at practical application are the synthesis complexity, catalytic efficiency, operational stability, synthetic cost, and the long-overlooked water oxidation reaction (WOR). Herein, a series of metal-free photocatalysts were synthesized via a one-step Friedel–Crafts reaction using the inexpensive monomers 1,4-benzenedimethanol and 4,4′-bis(chloromethyl)-1,1′-biphenyl, with a cost of 0.084 $ g –1 . Importantly, band structure engineering enables concurrent oxygen reduction reaction and WOR activation, achieving a record productivity of 3.94 mmol g –1 h –1 under air. To facilitate economic scalability and reproducibility, a dual-liquid-phase cyclic system for continuous H 2 O 2 production was equipped to deliver H 2 O 2 in a controllable concentration, highlighting its practical application. This work advances the fundamental understanding of structure–activity correlations in heterogeneous photocatalysis while delivering an engineered solution for sustainable and cost-effective H 2 O 2 synthesis, bridging molecular-level design with scalable applications.