Nature Water, Journal Year: 2024, Volume and Issue: 2(11), P. 1051 - 1052
Published: Oct. 24, 2024
Language: Английский
Desalination, Journal Year: 2024, Volume and Issue: unknown, P. 118167 - 118167
Published: Sept. 1, 2024
Language: Английский
Citations
24
Water Research, Journal Year: 2025, Volume and Issue: 274, P. 123100 - 123100
Published: Jan. 5, 2025
Language: Английский
Citations
1
Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 130561 - 130561
Published: Nov. 1, 2024
Language: Английский
Citations
5
Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131466 - 131466
Published: Jan. 1, 2025
Language: Английский
Citations
0
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: March 18, 2025
The strategic spatial positioning of ion affinity sites within biological channels and their cooperative binding with the targeted ions are pivotal for enhancing recognition ensuring exceptional selectivity in high ionic competition scenarios. However, application these principles to artificial remains largely unexplored. Herein, we present a series covalent organic framework (COF) membranes, engineered oxygen functional groups aligned along rims oriented COF pore varying sizes achieve precise arrangement sites. A notable membrane, featuring subnanometer pores decorated alternately carbonyl amide groups, demonstrated outstanding selectivity, achieving Li/Mg ratio 513 under equal mole electrodialysis conditions. Impressively, as Mg/Li source solution increased 16.6, rose 833, significantly exceeding reductions typically seen conventional selective nanofiltration methods. Both simulation experimental analyses indicate that this stems from between Li+ confined nanochannels, facilitating preferential transport ions. These findings provide promising approach designing extraction systems function effectively highly competitive environments.
Language: Английский
Citations
0
Water Research, Journal Year: 2024, Volume and Issue: 268, P. 122729 - 122729
Published: Nov. 1, 2024
Language: Английский
Citations
3
National Science Review, Journal Year: 2024, Volume and Issue: 12(2)
Published: Nov. 29, 2024
ABSTRACT Ion exchange membranes (IEMs) enable fast and selective ion transport the partition of electrode reactions, playing an important role in fields precise separation, renewable energy storage conversion, clean production. Traditional IEMs form channels at nanometer-scale via assembly flexible polymeric chains, which are trapped permeability/conductivity selectivity trade-off dilemma due to a high swelling propensity. New-generation have shown great potential break this intrinsic limitation by using microporous framework for under confinement regime. In Review, we first describe fundamental principles charged from nanometer sub-nanometer scale. Then, focus on construction new-generation highlight effects sub-2-nm sub-1-nm further ultra-micropores. The enhanced properties brought intense size sieving channel interaction elucidated, corresponding applications including lithium flow battery, water electrolysis, ammonia synthesis introduced. Finally, prospect future development with respect intricate microstructure observation, in-situ visualization, large-scale membrane fabrication.
Language: Английский
Citations
3
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 22, 2024
Abstract Covalent organic framework (COF) membranes feature with well‐developed 1D in‐plane pores and parallelly arranged 2D interlayer gallery, presenting promising platform for precise separations. However, it remains a formidable challenge to construct regulate membrane channels at angstrom scale. Herein, pH‐sensitive dopamine is taken advantage elaborately engineer the spatial size of 1D/2D in COF separations alkali metal ions. Acid treatment allows monomolecular segment membrane, achieving ultramicroporous regulation from 1.25 nm 0.71 nm, which enables high selectivity 18.7 K + /Li separation. Molecular dynamics simulations reveal higher dehydration degree, weaker channel‐cation interaction faster diffusion coefficient than Li . For alkaline treatment, self‐polymerizes form nanoparticles between layers, enlarges 0.33 0.45 enabling high‐permeance ion/molecule The water permeance increases 86.7% 404 L m −2 h −1 bar , without sacrifice sieving ability. Both cation separation performances outperform current state‐of‐the‐art membranes. This dopamine‐mediated channel engineering strategy may provide new insights design
Language: Английский
Citations
2
Nature Water, Journal Year: 2024, Volume and Issue: 2(11), P. 1051 - 1052
Published: Oct. 24, 2024
Language: Английский
Citations
1