Self-standing and flexible covalent organic framework (COF) membranes for molecular separation
文献类型：期刊论文
| 作者 | Liu, Jiangtao; Han, Gang; Zhao, Dieling; Lu, Kangjia; Gao, Jie; Chung, Tai-Shung |
| 刊名 | SCIENCE ADVANCES
 |
| 出版日期 | 2020 |
| 卷号 | 6期号:41 |
| 关键词 | INTERFACIAL POLYMERIZATION CRYSTALLINE CHEMISTRY LAYER |
| DOI | 10.1126/sciadv.abb1110 |
| 英文摘要 | Almost all covalent organic framework (COF) materials conventionally fabricated by solvothermal method at high temperatures and pressures are insoluble and unprocessable powders, which severely hinder their widespread applications. This work develops an effective and facile strategy to construct flexible and free-standing pure COF membranes via the liquid-liquid interface-confined reaction at room temperature and atmospheric pressure. The aperture size and channel chemistry of COF membranes can be rationally designed by bridging various molecular building blocks via strong covalent bonds. Benefiting from the highly-ordered honeycomb lattice, high solvent permeances are successfully obtained and follow the trend of acetonitrile > acetone > methanol > ethanol > isopropanol. Interestingly, the imine-linked COF membrane shows higher nonpolar solvent permeances than b-ketoenamine-linked COF due to their difference in pore polarity. Both kinds of COF membranes exhibit high solvent permeances, precise molecular sieving, excellent shape selectivity, and sufficient flexibility for membrane-based separation science and technology. |
| 学科主题 | Science & Technology - Other Topics |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20444]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | Chung, TS (corresponding author), Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117585, Singapore. |
| 推荐引用方式 GB/T 7714 | Liu, Jiangtao,Han, Gang,Zhao, Dieling,et al. Self-standing and flexible covalent organic framework (COF) membranes for molecular separation[J]. SCIENCE ADVANCES,2020,6(41). |
| APA | Liu, Jiangtao,Han, Gang,Zhao, Dieling,Lu, Kangjia,Gao, Jie,&Chung, Tai-Shung.(2020).Self-standing and flexible covalent organic framework (COF) membranes for molecular separation.SCIENCE ADVANCES,6(41). |
| MLA | Liu, Jiangtao,et al."Self-standing and flexible covalent organic framework (COF) membranes for molecular separation".SCIENCE ADVANCES 6.41(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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