溶解介导组装用于共价有机框架膜的大规模合成
Fangmeng Sheng1, Bin Wu2, Daojiang Zhu1
1Department of Applied Chemistry, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, P. R. China.
Angewandte Chemie (International ed. in English)
|February 23, 2026
概括
研究人员开发了一种新的方法来合成大规模的共价有机框架 (COF) 膜. 这些先进的膜为净化水和稀土元素回收提供了更好的离子选择性.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 纳米技术纳米技术
背景情况:
- 传统的聚合物膜面临着离子透性和选择性之间的权衡.
- 聚合有机框架 (COF) 膜由于其有序结构,提供了一个潜在的解决方案.
研究的目的:
- 为COF膜开发一种可扩展的合成方法.
- 了解COF膜的动态形成机制.
主要方法:
- 在大规模的COF膜合成中,采用了溶解介导组合 (SMA) 方法.
- 在现场加热液体传导电子显微镜和多尺度模拟被用于可视化和分析膜形成.
主要成果:
- 成功合成了具有高抗拉强度 (∼65 Mpa) 的大型独立的COF膜 (∼2400 cm2) .
- 该研究可视化并详细阐述了膜形成期间的溶解相互作用.
结论:
- 开发的SMA方法使可扩展的COF膜生产成为可能.
- 膜表现出选择性离子分离能力,用于水回收和稀土离子回收,显示出实际应用潜力.
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