Understanding Mono- and Bivalent Ion Selectivities of Nanoporous Graphene Using Ionic and Bi-ionic Potentials.
Journal
Langmuir : the ACS journal of surfaces and colloids
ISSN: 1520-5827
Titre abrégé: Langmuir
Pays: United States
ID NLM: 9882736
Informations de publication
Date de publication:
07 Jul 2020
07 Jul 2020
Historique:
pubmed:
6
6
2020
medline:
6
6
2020
entrez:
6
6
2020
Statut:
ppublish
Résumé
Nanoporous graphene displays salt-dependent ion permeation. In this work, we investigate the differences in Donnan potentials arising between reservoirs, separated by a perforated graphene membrane, containing different cations. We compare the case of monovalent cations interacting with nanoporous graphene with the case of bivalent cations. This is accomplished through both measurements of membrane potential arising between two salt reservoirs at different concentrations involving a single cation (ionic potential) and between two reservoirs containing different cations at the same concentration (bi-ionic potential). In our present study, Donnan dialysis experiments involve bivalent MgCl
Identifiants
pubmed: 32498516
doi: 10.1021/acs.langmuir.0c00924
pmc: PMC7346097
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
7400-7407Références
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