具有聚电解质介导的等级纳米通道的共价有机框架膜,用于超快速和选择性净化水
Mingxiu Tang1, Yu Liao1, Songjun Fang1
1College of Environmental Science and Engineering, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, 38 Tongyan Road, Tianjin, 300350, China.
Angewandte Chemie (International ed. in English)
|November 27, 2025
概括
本研究提出了一种创建先进的共价有机框架 (CON) 膜的新方法. 这些膜提供超快速和选择性的水净化,去除有机微污染物,同时允许水和盐离子快速通过.
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.
- 环境科学 环境科学
背景情况:
- 开发高效的膜,以实现可持续的水净化至关重要.
- 在二维共价有机框架 (CON) 膜中控制纳米通道架构是分子分离的关键.
研究的目的:
- 微调CON膜中的等级运输纳米通道,以提高净水效果.
- 为了实现有机微污染物 (OMP) 和盐离子的超快速和选择性分离.
主要方法:
- 采用聚电解质介导的层次组装策略来控制CON纳米板堆叠.
- 为了实现双重功能,设计了内平面孔和间层纳米通道.
主要成果:
- 实现了对CON膜结构的精确控制,减少了缺陷并优化了孔隙特性.
- 证明了高的水透度 (72 L m-2 h-1 bar-1) 和优秀的选择性 (438) 对离子/OMPs.
- 成功减缓了OMP,同时促进了水和盐离子的快速运输.
结论:
- 开发的CON膜显示出在水污染清除方面具有卓越的性能.
- 这种分层组装策略为设计用于净化水的先进膜提供了一个强大的平台.
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