Graphene oxide membranes have been used before to filter out small particles, but they swell a bit in the presence of water and that change in properties is enough for salt to get through.

New research shows graphene can filter common salts from water to make it safe to drink Findings could ... This allows the tiny capillaries of the graphene-oxide membranes to block the salt from ...

A highly used and facile method for applying graphene to a support membrane is by vacuum filtration, whereby the graphene is mixed well and suspended in a solvent, which is then filtered through the ...

Graphene-oxide membranes developed at the National Graphene Institute have attracted widespread attention for water filtration and desalination applications, providing a potential solution to the ...

Another emerging strategy that has gained interest is the use of graphene oxide membranes—atom-thick sheets of carbon—in reverse osmosis systems to filter salt out of seawater or brackish water, such ...