Graphene sieves are a cheaper way of making saltwater drinkable

ENGADGET | on Tue, Apr 4, 9:57 AM

According to project lead Dr. Rahul Nair, they can make graphene oxide sieves simply by pouring the solution onto a substrate or porous material. To make typical graphene permeable for desalination, you'd need to drill holes absolutely no larger than one nanometer into the membrane. "It is a really challenging job," Nair said. The team still had to find a way for graphene oxide membranes to filter out salts, though. In previous studies, scientists found that the membranes swell when immersed ...

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