Nature Communications (Nov 2022)
Unexpectedly efficient ion desorption of graphene-based materials
Abstract
Desorption of ions from sorbents generally involves high acid or base concentrations and long desorption times, especially for multivalent ions. Here the authors report a rapid and efficient desorption of Co2+, Mn2+, and Sr2+ adsorbed on magnetite-graphene oxide that occurs by adding low amounts of Al3+, which is shown to interact with graphene more strongly than divalent ions.