Researchers Made A Graphene Sieve That Can Make Seawater Safe To Drink

Researchers Made A Graphene Sieve That Can Make Seawater Safe To Drink - Featured Graphene Water Purification
In Brief

Researchers at the University of Manchester have used to produce an efficient, cost-effective method of turning seawater into drinking water.

Sieving Out Salt

A team of researchers led by Rahul Nair of the University of Manchester have invented a graphene oxide membrane that can sieve salt from seawater, producing potable water.

Graphene has been tipped as a promising material for this kind of purpose for some time, but previous attempts have failed because graphene oxide membranes swell up when submerged. This allows salt particles to flow through, impeding its ability to properly filter the liquid.

However, Nair and his team counteracted this problem by building walls of epoxy resin on both sides of the membrane. This offered them close control over the size of the membrane’s pores, which could be made small enough to sieve all the varieties of salt that tend to be present in seawater.


The full story is available below.



  1. Great, it could make the seawater not only drinkable, but also suitable for irrigation and for hydrogen and oxy-hydrogen fuel production. Imagine transfer of large volumes of desalinated seawater into the middle of the desert.

  2. Very interesting, we performed some resesarch with CNT´s at school of mechanical engineering and research center, now started with Graphene, for drinking water ,. I skip e in engineering.
    Congratulations to publish Graphene entrepeneur, by October will be at nanocomposites conference with some researcher from University of Manchester,