Supramolecular-Based Ion Separation Membranes for Direct Separation of Concentrated Mixed-Salt Solutions
Hainan University · Kementerian Pendidikan Malaysia
Abstract
Efficient ion separation from concentrated brines is critical for sustainable water resource utilization, zero-liquid discharge, and strategic ion recovery, yet it remains a formidable challenge for conventional ion-selective membranes (ISMs). Existing ISMs rely on weak ion–pore interactions, limiting their applicability to dilute solutions, whereas stronger binding designs often impose high diffusion barriers that suppress flux. Here, we report a supramolecular ISM in which 18-crown-6 (18C6) macrocycles are integrated into the one-dimensional nanochannels of covalent organic frameworks (COFs), forming a dual-channel architecture─supramolecular pathways for cations and macrocycle-separated free channels for…
Citation impact
- FWCI
- 33.02
- Percentile
- 100%
- References
- 47
Authors
7- CLChengcheng Li
Hainan University, Kementerian Pendidikan Malaysia
- SLShen Li
Hainan University, Kementerian Pendidikan Malaysia
- YZYajie Zhong
Hainan University, Kementerian Pendidikan Malaysia
- TWTing Wang
Hainan University, Kementerian Pendidikan Malaysia
- XTXinlong Tian
Hainan University, Kementerian Pendidikan Malaysia
Topics & keywords
- Membrane
- Permeation
- Selectivity
- Limiting
- Ion
- Supramolecular chemistry
- Diffusion
- Covalent bond