Pillar[5]arene based artificial light-harvesting supramolecular polymer for efficient and recyclable photocatalytic applications  

作　　者：Lei Zhou Youjun Zhou Lizhen Fang Yiqiao Bai Yujia Meng Liang Li Jie Yang Yong Yao 

机构地区：[1]School of Chemical and Environmental Engineering,Shanghai Institute of Technology,Shanghai 201418,China [2]School of Chemistry and Chemical Engineering,Nantong City Key Laboratory of Life-Organic Chemistry,Nantong University,Nantong 226019,China [3]College of Science,Nanjing Forestry University,Nanjing 210037,China

出　　处：《Chinese Chemical Letters》2024年第9期179-182,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.32101215,22007052);Natural Science Foundation of Jiangsu Province(Nos.BK20180942,BK20190917)。

摘　　要：Photosynthesis is the process through which living plants utilize photosynthetic pigments,such as chlorophyll,to convert CO_(2)and water into organic compounds and release O_(2)under visible light.In this study,we have successfully constructed a fluorescent supramolecular polymer(P5Py_(2)/Zn/Gen)n by employing orthogonal pillar[5]arene-based molecular recognition and metal ion coordination.Within the supramolecular polymer,the guest molecule Gen unit acts as a light-harvesting moiety,as the ACQ effect is inhibited by host-guest interactions,while the(Py)_(2)/Zn center serves as a catalytic site.By employing this orthogonal self-assembly strategy,we have enhanced the stability of both the donor and acceptor in catalyzing the reduction of p-nitrophenol to p-aminophenol.Moreover,this photocatalyst can be reused at least 5 times without significant conversion loss.These findings provide a pathway for constructing a recyclable artificial LHS that mimics the entire photosynthesis process.

关 键 词：arenes Light-harvest Supramolecular polymer Photosynthesis Orthogonal self-assembly 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] TQ317[化学工程—高聚物工业]