Solvent-resistant polybenzimidazole-based anion exchange membranes without crosslinkers for stable mono-valent/Di-valent anion separation DOI
Junbin Liao, Yifan Xu,

Qishun Zhang

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 119053 - 119053

Published: May 1, 2025

Language: Английский

Ultramicroporous Tröger's Base Framework Membranes With Ionized Sub‐nanochannels for Efficient Acid/Alkali Recovery DOI Creative Commons
Hong Sun, Ning Gan, Yuqing Lin

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Abstract Membrane technology holds significant potential for the recovery of acids and alkalis from industrial wastewater systems, with ion exchange membranes (IEMs) playing a crucial role in these applications. However, conventional IEMs are limited to separating only monovalent cations or anions, presenting challenge achieving concomitant H⁺/OH⁻ permselectivity simultaneous acid alkali recovery. To address this issue, charged microporous polymer framework developed, featuring rigid Tröger's Base network chains constructed through facile sol‐gel process. The intrinsic ultramicropore confinement quaternary ammonium‐charged functional groups provide ultrahigh size‐sieving capability enhanced Donnan exclusion selectivity; meanwhile, internal protoplasmic channels frameworks serve as highways rapid transfer. resulting membrane achieves high H⁺/Fe 2 ⁺ OH⁻/WO₄ ⁻ selectivities 694.4 181.0, respectively, concurrent separation diffusion dialysis electrodialysis processes over extended operational periods (exceeding 1600 600 h, respectively), while maintaining remarkable transport rates. These results outperform most literature‐reported nearly all commercially available membranes. This study validates novel applicability materials ionized angstrom‐scale versatile functionalities high‐performance acid/alkali resource

Language: Английский

Citations

1
Heterostructured Polyamide Membrane with Dual-Charge Effects for Ultra-selective Nanofiltration DOI

Yulong Qiu,

Ning Gan, Yuqing Lin

et al.

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123774 - 123774

Published: Jan. 1, 2025

Language: Английский

Citations

1
Nanocolloidal-confined interface polymerization for the preparation of high-permeance nanofiltration membrane DOI
Chunyu Jiang, Xinliang Zhang, Li-Ming Cao

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132111 - 132111

Published: Feb. 1, 2025

Language: Английский

Citations

1
Amine-Modified ZIF Composite Membranes: Regulated Nanochannel Interactions for Enhanced Cation Transport and Precise Separation DOI
Zhe Wang,

Wenjuan Zhang,

Weifu Wang

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

Electromembrane water treatment technologies are attracting attention for their energy efficiency and precise separation of counterions. However, ion-exchange membranes exhibit low ionic conductance selectivity ions with similar charges. In this study, we developed a novel ZIF-8 composite membrane amine-modified nanochannels through an in situ PEI-assisted seeding secondary growth method. An integral uniform selective layer was formed, the induced differential transport Li+, Na+, K+, Mg2+ via dehydration-hydration process. The possessed lower barrier Na+ (Ea = 13 kJ mol-1) compared to 17 mol-1), showing flux 3.7 × 10-8 mol·cm-2·s-1 Na+/Mg2+ permselectivity 52 (∼60 times higher than commercial membrane). physicochemical electrochemical properties were systematically characterized, revealing significant role increasing repulsion facilitating diffusion. Besides, DFT simulation interaction calculation elucidated that moderate binding compensation effect between nanochannels, which can be precisely regulated by PEI incorporation, crucial favorable passage while maintaining high rejection. also demonstrated performance stability during 5-day test maintained across varying salinity pH conditions. This work advances development efficient cation sustainable desalination resource recovery.

Language: Английский

Citations

1
Supramolecular-Coordinated Nanofiltration Membranes with Quaternary-Ammonium Cyclen for Efficient Lithium Extraction from High Magnesium/Lithium Ratio Brine DOI
Ning Gan, Yuqing Lin,

Baolong Wu

et al.

Water Research, Journal Year: 2024, Volume and Issue: 268, P. 122703 - 122703

Published: Oct. 28, 2024

Language: Английский

Citations

7
Sustainable approaches to tailings remediation: Role of organic fertilizers DOI
Chaofan Li,

Haoxuan Cai,

Yuqing Liu

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121454 - 121454

Published: March 1, 2025

Language: Английский

Citations

0
Solvent-resistant polybenzimidazole-based anion exchange membranes without crosslinkers for stable mono-valent/Di-valent anion separation DOI
Junbin Liao, Yifan Xu,

Qishun Zhang

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 119053 - 119053

Published: May 1, 2025

Language: Английский

Citations

0