Reconstruction of D‐Π‐A Polymer Accelerating Photocatalytic Degradation of BPA and Production of H 2 O 2

作者：Xiaoyong Xia, Jie Feng, Zhaocan Zhong, Xiaoying Yang, Najun Li, Dongyun Chen, Youyong Li, Qingfeng Xu, Jianmei Lu · 发表于：Advanced Functional Materials · 年份：2023 · DOI：10.1002/adfm.202311987 · 被引用次数：59 · 研究领域：Advanced Photocatalysis Techniques、Covalent Organic Framework Applications、Perovskite Materials and Applications

Abstract Advanced oxidation processes (AOPs) using hydroxyl radicals (•OH) as oxidizing agents are a promising technology. Herein, a feasible strategy is developed to initially construct carbazole‐based D‐π‐A type conjugated polymer (PBNCZ) via the oxidative coupling. Additionally, introducing ─COO − through Cyano hydrolysis extends its conjugated structure and improves the energy band structure, which greatly facilitates the generation of •OH as well as the enrichment of pollutants. Detailed experiments and theoretical calculations have proved that the introduction of ─COO − enhances the adsorption of O 2 and bisphenol A (BPA), optimizing the reaction path of •OH. Thus, it completely decomposes 10 ppm of BPA within just 10 min, exceeding all previously organic photocatalysts. Meanwhile, the efficiency of photocatalytic H 2 O 2 production by PBNCZ‐COO − reaches 1719.03 µmol h −1 g −1 under visible light. This multifunctional material with high adsorption capacity, photodegradation efficiency, and photocatalytic H 2 O 2 production activity provides a solid foundation for the preparation of organic photocatalysts.