Construction and application of the polyelectrolyte-based sequential artificial light-harvesting system

作     者：Chaoqun Ma Ning Han Ying Wang Hui Liu Rongzhou Wang Shengsheng Yu Yuebo Wang Lingbao Xing Chaoqun Ma;Ning Han;Ying Wang;Hui Liu;Rongzhou Wang;Shengsheng Yu;Yuebo Wang;Lingbao Xing

作者机构：School of Chemistry and Chemical EngineeringShandong University of TechnologyZibo 255000China Department of Materials EngineeringKU LeuvenLeuven 3001Belgium 

出 版 物：《中国化学快报:英文版》 (Chinese Chemical Letters)

年 卷 期：2023年第34卷第8期

页      面：162-166页

核心收录：

学科分类：081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070304[理学-物理化学(含∶化学物理)] 070205[理学-凝聚态物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：We are grateful for the financial support from the National Natural Science Foundation of China(Nos.52205210 and 22005179) the Natural Science Foundation of Shandong Province(Nos.ZR2020MB018,ZR2022QE033,ZR2020QB113 and ZR2018BEE015) 

主　　题：Supramolecular assembly Light-harvesting system Electrostatic interaction Energy transfer Photocatalysis 

摘      要：In this work,we have designed and synthesized a cyano-substituted p-phenylenevinylene derivative(PPTA),which can self-assemble into positively charged nanoparticles in an aqueous solution with a deep green *** anionic polyelectrolyte material guar gum modified by carboxylic acid(GP5A)was chosen to build an artificial light-harvesting system(LHS)through self-assembly with PPTA,in which two acceptors Eosin Y(EY)and Nile red(NiR)were loaded into the PPTA-GP5A assemblies through electrostatic interaction and Van der Waals *** adjusting the molar ratio of PPTA-GP5A/EY at 1:0.004,the one-step artificial LHS can exhibit high energy transfer efficiency(Φ_(ET))(38.9%)and antenna effect(AE)(4.6).Subsequently,with the addition of NiR,theΦET and AE of the two-step sequential artificial LHS were calculated to be 71.9%and 13.5,***,the two-step artificial LHS constructed by the polyelectrolyte material GP5A can be used as a nanoreactor to photocatalyst alkylation of C-H bonds of phenyl vinyl sulfone(PVS)and tetrahydrofuran(THF)in water with a yield of 42%.Therefore,we have constructed an artificial LHS with two-step energy transfer based on polyelectrolytes through the electrostatic interaction to improve energy transfer efficiency,which can also be used as a nanoreactor for photocatalysis.