相关实验视频

Updated: Sep 20, 2025

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

超选择性透性聚胺膜,通过基和深性溶剂的界面聚合制备

Jiansong Liu¹, Yang Yang¹, Shuai Gu¹

¹Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China.

Angewandte Chemie (International ed. in English)

|May 28, 2025

概括

一种新的基/深溶解剂 (DES) 界面聚合法产生了超选择性的聚胺膜. 这种方法通过精确控制纳米限制和提高盐分离选择性来增强水净化.

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:

传统的烯/水界面聚合与聚胺膜中精确的纳米限制作斗争.
实现精确定义的孔隙结构需要策略来减缓扩散和抑制副作用反应.

研究的目的:

开发一种先进的界面聚合方法,用于制造超选择性透聚胺膜.
利用深层性溶剂 (DES) 来克服膜纳米封闭和孔隙结构控制方面的挑战.

主要方法:

引入了一种基/深度环氧溶剂 (DES) 界面聚合技术.
采用DES作为无水溶剂,以防止副作用和调节单体扩散.
利用DES的结网来控制寡合体组合和孔隙形成.

主要成果:

成功制备了具有均亚纳米孔的聚胺膜.
实现了特殊的NaCl/Na2SO4分离选择性 (165.8),明显高于常规膜.
证明了高达18.4 L m-2 h-1 bar-1.0 的令人印象深刻的水透率.

结论:

/DES界面聚合策略使得精确的纳米封闭和超选择性聚胺膜制造成为可能.
DES在调节单体扩散和提高膜性能方面发挥着至关重要的作用.
这种方法代表了先进的净水系统的范式转变.

关键词:

清洁的水清洁的水深层欧性溶剂深层欧性溶剂界面聚合的介面聚合.纳米过膜是一种纳米过膜.

更多相关视频

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Published on: April 7, 2017

Preparation of Light-responsive Membranes by a Combined Surface Grafting and Postmodification Process

Preparation of Light-responsive Membranes by a Combined Surface Grafting and Postmodification Process

Published on: March 21, 2014

相关概念视频

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...