摘要：Herein, two anthraquinone-functionalized donor-acceptor (D-A) conjugated polymeric catalysts (AQ-TEA and AQ-TEB), were prepared via Sonogashira cross-coupling of 2,6-dibromoanthraquinone (AQ) with tris(4-ethynylphenyl)amine (TEA) and 1, 3, 5-triethynylbenzene (TEB), respectively. The chemical structures and morphologies of the catalysts were characterized by FTIR, XPS, XRD and TEM. The optical and electronic properties of two catalysts were investigated by solid UV/Vis diffuse reflectance spectroscopy, steady-state fluorescence spectroscopy, time-resolved fluorescence spectroscopy, and electrochemical characterization. The results indicated that AQ-TEA derived from 2,6-dibromoanthraquinone and tris(4-ethynylphenyl)amine exhibited stronger visible-light absorption and charge-transfer performance. The catalytic performance of two photocatalysts for the photoreduction of CO2 in the presence of H2O was studied. AQ-TEA showed better performance, with a CO production rate of 392μmol/(g·h), which was 1.8 times that of AQ-TEB. Based on the results of experiments and theoretical calculations, we deduced that the strong intramolecular charge transfer (ICT) in the conjugated polymers could promote their light absorption, photoelectric conversion and photocatalytic performance. This work provides a new insight into design and fabrication of active conjugated polymeric catalysts with high photocatalytic efficiency for solar-energy conversion. ? 2024 Chemical Industry Press Co., Ltd.. All rights reserved.

ISSN号：1000-6613

卷、期、页：卷43期1：292-301

发表日期：2024-01-01

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）

发表期刊名称：Huagong Jinzhan/Chemical Industry and Engineering Progress

第一作者：于笑笑,巢艳红,刘海燕,朱文帅,刘植昌

论文类型：期刊论文

论文概要：于笑笑,巢艳红,刘海燕,朱文帅,刘植昌，Enhanced photoelectric properties and photocatalytic CO2 conversion by D-A conjugated polymerization，Huagong Jinzhan/Chemical Industry and Engineering Progress，2024，卷43期1：292-301

论文题目：Enhanced photoelectric properties and photocatalytic CO2 conversion by D-A conjugated polymerization