The Guardian: How ‘wonder material’ graphene became a national security concern.
[1]https://www.theguardian.com/business/2021/sep/27/graphene-wonder-material-nat
ional-security-china-uk

   Jim Bell's comment:

   Graphene may also become an excellent desalinization membrane, for very
   low cost water.

References

   1. https://www.theguardian.com/business/2021/sep/27/graphene-wonder-material-national-security-china-uk