Metal-free synthesis of pyridyl conjugated microporous polymers with tunable bandgaps for efficient visible-light-driven hydrogen evolution  

作　　者：Zhonghua Cheng Yan He Chen Yang Nan Meng Yaozu Liao 

机构地区：[1]State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China

出　　处：《Chinese Chemical Letters》2023年第4期271-274,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 52103024, 52073046, 51873036 and51673039);the Program of Shanghai Academic Research Leader(No. 21XD1420200);the Shanghai Shuguang Program (No. 19SG28);the Chang Jiang Scholar Program (No. Q2019152);the Shanghai Pujiang Talent Program (No. 20PJ1400600);the Shanghai Natural Science Foundation (Nos. 22ZR1401600 and 19ZR1470900);the Fundamental Research Funds for the Central Universities(No. 2232021D-01);the Fundamental Research Funds for the Central Universities and Graduate Student Innovation Fund of Donghua University (No. CUSF-DH-D-2019024)。

摘　　要：Conjugated microporous polymers(CMPs) with tunable bandgaps have attracted increasing attention for photocatalytic hydrogen evolution. However, the synthesis of CMPs usually needs expensive metal-based catalysts. Herein, we report a metal-free synthetic route to fabricate pyridyl conjugated microporous polymers(PCMPs) via a condensed polymerization between aldehyde and aryl ketone monomers. The PCMPs show widely tunable specific surface areas(347–418 m^(2)/g), which were controlled via changing the used monomers. The PCMPs synthesized using monomers of dialdehyde and diacetylbenzene(diacetylpyridine) in the presence of pyridine exhibited the highest visible-light driven hydrogen evolution rate(9.56 μmol/h). These novel designed PCMPs provide wide adaptability to current materials designed for high-performance photocatalysts in different applications.

关 键 词：Pyridyl conjugated microporous polymers Metal-free synthesis Tunable bandgaps PHOTOCATALYSTS Hydrogen evolution reaction 

分 类 号：TQ116.2[化学工程—无机化工] O643.36[理学—物理化学] O644.1[理学—化学]