Charged Nanochannels in Covalent Organic Framework Membranes Enabling Efficient Ion Exclusion
文献类型：期刊论文
| 作者 | You, Xinda2,3; Cao, Li2,3; Liu, Yawei6; Wu, Hong2,3,4; Li, Runlai7; Xiao, Qianxiang8; Yuan, Jinqiu2,3; Zhang, Runnan2,3; Fan, Chunyang2,3; Wang, Xiaoyao2,3 |
| 刊名 | ACS Nano
 |
| 出版日期 | 2022-08-23 |
| 卷号 | 16期号:8页码:11781-11791 |
| ISSN号 | 19360851 |
| 关键词 | Energy conversion - Ions |
| DOI | 10.1021/acsnano.2c04767 |
| 英文摘要 | Controllable ion transport through nanochannels is crucial for biological and artificial membrane systems. Covalent organic frameworks (COFs) with regular and tunable nanochannels are emerging as an ideal material platform to develop synthetic membranes for ion transport. However, ion exclusion by COF membranes remains challenging because most COF materials have large-sized nanochannels leading to nonselective transport of small ions. Here we develop ionic COF membranes (iCOFMs) to control ion transport through charged framework nanochannels, the interior surfaces of which are covered with arrayed sulfonate groups to render superior charge density. The overlap of an electrical double layer in charged nanochannels blocks the entry of co-ions, narrows their passageways, and concomitantly restrains the permeation of counterions via the charge balance. These highly charged large-sized nanochannels within the iCOFM enable ion exclusion while maintaining intrinsically high water permeability. Our results reveal possibilities for controllable ion transport based on COF membranes for water purification, ionic separation, sensing, and energy conversion. 漏 2022 American Chemical Society. All rights reserved. |
| 学科主题 | Membranes |
| 项目编号 | This work was carried out with the support of 1W1A beamline at Beijing Synchrotron Radiation Facility. The authors greatly acknowledge Zhiming Zhang, Xu Liang, and Baoyin Li from Tianjin University for their kind support for the atomic force microscope and N adsorption experiments. The authors greatly acknowledge Prof. Kaige Zhou from Tianjin University for his valuable suggestions for this work. This work was supported by the National Natural Science Foundation of China (21878215) and the Key Research and Development Program of Zhejiang Province (2021C03173). 2 |
| 出版者 | American Chemical Society |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61314]  |
| 作者单位 | 1.Joint School of National University of Singapore, Tianjin University, International Campus of Tianjin University, Fuzhou, Binhai New City; 350207, China 2.Key Laboratory for Green Chemical Technology, Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin; 300072, China 3.Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin; 300072, China 4.Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin; 300072, China 5.Zhejiang Institute, Tianjin University, Zhejiang, Ningbo; 315201, China 6.Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 7.Department of Chemistry, National University of Singapore, Singapore; 117549, Singapore 8.School of Chemistry and Chemical Engineering, University of South China, Hengyang; 421001, China |
| 推荐引用方式 GB/T 7714 | You, Xinda,Cao, Li,Liu, Yawei,et al. Charged Nanochannels in Covalent Organic Framework Membranes Enabling Efficient Ion Exclusion[J]. ACS Nano,2022,16(8):11781-11791. |
| APA | You, Xinda.,Cao, Li.,Liu, Yawei.,Wu, Hong.,Li, Runlai.,...&Jiang, Zhongyi.(2022).Charged Nanochannels in Covalent Organic Framework Membranes Enabling Efficient Ion Exclusion.ACS Nano,16(8),11781-11791. |
| MLA | You, Xinda,et al."Charged Nanochannels in Covalent Organic Framework Membranes Enabling Efficient Ion Exclusion".ACS Nano 16.8(2022):11781-11791. |
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来源：过程工程研究所
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