Solvent‐Directed in Situ Stacking Modulation of 2D Covalent Organic Frameworks for Selective Separation of Xylene Isomers
Abstract
Abstract The precise regularity of stacking modes in two‐dimensional covalent organic frameworks (2D COFs) remains insufficiently understood, and achieving precise control during synthesis is highly challenging. Here, we show that the interlayer stacking arrangement can be in situ modulated simply by varying the reaction solvent, allowing the selective formation of either eclipsed (AA) or staggered (AB) stacking. This direct solvent‐driven regulation, achieved without post‐synthetic modification, underscores the dynamic nature of COF assembly. Notably, the AA‐stacked COF exhibits promising separation performance for xylene isomers compared to its AB‐stacked counterpart.
Article Details
Authors (8)
Xuhan Zheng
State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology College of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao Shandong China
Hui Liu
Jialin Cui
Key Laboratory for Ultrafine Materials of Ministry of Education School of Chemical Engineering East China University of Science and Technology Shanghai China
Yuman Guo
State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology College of Polymer Science and Engineering Qingdao University of Science and Technology Zhengzhou Road Qingdao 266000 China
Hongze Xu
State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology College of Polymer Science and Engineering Qingdao University of Science and Technology Zhengzhou Road Qingdao 266000 China
Zejun Zhang
State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology College of Polymer Science and Engineering Qingdao University of Science and Technology Zhengzhou Road Qingdao 266000 China
Jianming Zhang
Institute of Quantum and Sustainable Technology (IQST), School of Chemistry and Chemical Engineering
Yingjie Zhao
College of Chemistry and Pingyuan Laboratory