ArticleNational science review2025
Ultraviolet-water-induced angstrom-sized channels in membrane for precise ion sieving.
Article in National science review, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- A ferroelectric-induced few-nanometer-thick graphene membrane enables molecular sliding for ultra-fast separation.National science review · 2026Article
- Ion-selective membranes by UV-induced cleavage of polymer chains.National science review · 2025Article
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9 authors.
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Abstract
Membranes with angstrom-sized channels can enable precise ion separation. While progress has been achieved in polymer membranes, which are the dominant commercial membranes, significant technical challenges of creating angstrom-sized channels remain in these membranes. Here, we report an ultraviolet-water (UV-W) strategy to create angstrom-sized channels (2.9-7.8 Å) with tunable size and charges in ion-tracked polymer membranes, where 'UV-W' refers to water illuminated by ultraviolet light, which is able to generate highly oxidative hydroxyl radicals. These generated hydroxyl radicals can scissor polymer chains within the ion tracks. Thus, we first create water passages within the polymer, then with the aid of hydroxyl radicals we subsequently form transport channels. The resultant membrane exhibits outstanding separation performance with a Li
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