文献类型：期刊文献

英文题名：Efficient Quasi-Homogenous Photocatalysis Enabled by Molecular Nanophotocatalysts with Donor-Acceptor Motif

作者：Liu, Xueyan[1,2];Yu, Miaojie[1,2];Huang, Kai[1,2];Huang, Haiyang[1,2];Gu, Hongxu[1,2];Tian, Changhao[1,2];Qi, Jing[1,2];Guo, Zhiqian[1,2];Lian, Cheng[1,2];Wu, Yongzhen[1,2];Zhang, Weiwei[1,2];Zhu, Wei-Hong[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Inst Fine Chem, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Shanghai 200237, Peoples R China

年份：2025

卷号：37

期号：4

外文期刊名：ADVANCED MATERIALS

收录：;EI(收录号：20244917481671);WOS:【SCI-EXPANDED(收录号:WOS:001368051600001)】；

基金：X.L. and M.Y. contributed equally to this work. This study is supported by National Natural Science Foundation of China (NSFC, 22422805, 22338006, 92356301, T2488302, 9235630033, and 22375062); Shanghai Municipal Science and Technology Major Project (2018SHZDZX03, 21JC1401700); Shanghai Pilot Program for Basic Research (22TQ1400100-10); Fundamental Research Funds for the Central Universities; Shanghai Pujiang Program (22PJ1402400); "Chenguang Program" supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission (22CGA32); the Young Elite Scientists Sponsorship Program by CAST (2023QNRC001). The authors acknowledge the Research Center of Analysis and Test of East China University of Science and Technology (ECUST) for assistance with various characterizations.

语种：英文

外文关键词：nanoprecipitation; photocatalytic hydrogen evolution; small-molecule-based nanophotocatalysts; surfactants

摘要：Polymer semiconductors have attracted much attention for photocatalytic hydrogen evolution, but they typically exhibit micrometer-sized particles in water-suspension, causing severe loss in light absorption and exciton recombination. Here a molecular nanophotocatalyst featuring a donor-acceptor motif is presented that solution is processed via a facile stirring nanoprecipitation method assisted by hydrophilic surfactants, enabling an efficient quasi-homogenous hydrogen evolution. In contrast to the original bulk powder (heterogeneous system), these quasi-homogenous nanophotocatalysts exhibit significantly improved light-harvesting, water-wettability, and exciton dissociation, resulting in distinctly enhanced (by four-order-of-magnitude) photocatalytic hydrogen evolution rate. The optimized nanophotocatalysts (4CzPN/DDBAB/SDBS) generate an outstanding hydrogen evolution rate of 116.42 mmol g-1 h-1 and apparent quantum yield of 30.2% at 365 nm, which are among the highest reported for single-junction organic photocatalysts. The scalability of the quasi-homogenous photocatalysts is further demonstrated using a flow-based flash nanoprecipitation (FNP) processing.