Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/13247
Title: Ion and Molecule Sieving Through Highly Stable Graphene-Based Laminar Membranes
Authors: Yuan, Gang
Jiang, Yu
Wang, Xiao
Ma, Jiaojiao
Ma, Hao
Wang, Xiang
Hu, Sheng
Keywords: [No Keyword Available]
Publisher: Amer Chemical Soc
Abstract: Biological ion channels use both their sizes and residual groups to reject large ions and molecules and allow highly selective permeation of small species with similar sizes. To realize these properties in artificial membranes, the main challenge is the precise control of both the channel size and the interior at the nanoscale. Here we report the permeation of ions and molecules through interlayer channels in graphene-based laminar membranes. The amino groups decorated on channel walls are found to form hydrogen bond networks with intercalated water molecules, thus providing a highly stable laminate structure and a controlled channel size. Solutes with hydration diameters of >10 angstrom are precisely sieved out. Small species permeate through with selectivities of up to a few thousand, governed by their distinct electrical interactions with channels depending on the atomistic distance from the charged species to the channel walls. Our work offers important insights into manipulating channel structures for enhanced separation performance at the nanoscale.
Description: Jiang, Yu/0000-0002-6505-4072; Hu, Sheng/0000-0002-1285-6055; yagmurcukardes, mehmet/0000-0002-1416-7990
URI: https://doi.org/10.1021/acs.jpclett.2c03579
ISSN: 1948-7185
Appears in Collections:Photonics / Fotonik
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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