Scalable and highly selective graphene-based ion-exchange

Index

Abstract

This work explores the scalable production of graphene oxide (GO) membranes as ion-exchange membranes with tunable permselectivity. The study investigates the impact of membrane thickness, UV-light reduction, binder addition, and flake size on ion selectivity and ionic resistance. Results demonstrate high cation selectivity (up to 96%), low ionic resistance (4.6 Ω cm²), and improved mechanical properties through the use of binders. UV-light irradiation is presented as an effective green reduction method.

Publisher

npj 2D Materials and Applications

Published On

Jul 03, 2023

Authors

Anna Aixalà-Perelló, Alessandro Pedico, Marco Laurenti, Enrica Fontananova, Sergio Bocchini, Ivan Vito Ferrari, Andrea Lamberti

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