Blog icon

Important information

The National AI Centre (NAIC) is transitioning from CSIRO to the Department of Industry, Science, and Resources (DISR) on 1st July 2024. You can find the latest NAIC content at For any NAIC-related questions, please email

Graphene is a revolutionary carbon material that is one atom thick and will find application in many areas. We have invented a form of graphene, Graph Air, that is uniquely suited to filtering compounds from water through membrane distillation.

Dr Seo collecting a water sample from Sydney Harbour

Unlike normal water filters, Graph Air can filter out extremely toxic chemical compounds while allowing pure, pH neutral water through. It has narrow channels through which smaller water molecules can pass, but larger dissolved molecules and solvated ions are blocked. All while dealing with high concentrations of acids or alkalines that rapidly destroy other filtering membranes.

Graph Air is showing resistance to the biofouling that plagues current technologies, while delivering a higher flux than polymer membranes in the same application.


  • Unlike other types of graphene, Graph Air is produced in ambient air conditions from liquids
  • A membrane distillation device with a Graph Air graphene membrane can produce pure and potentially ultrapure laboratory water in a single step at a significantly reduced cost compared to exiting methods
  • Graph Air membranes have been made and operated at 9cm2 scale (roughly enough to produce one litre per day of pure water)
  • Current focus is on scaling up to 800cm2 and developing efficient membrane production process.


The potential applications include:

  • Water filtration and purification
  • Application in the production of laboratory water
  • The semiconductor industry
  • biopharmaceutical industry
  • difficult-to-treat waste water treatment
  • water remediation
  • chemical process industry and eventually in desalination where waste heat is available.

Intellectual property

Patents covering the method of producing graphene in air.

The team

Our team has over 35 years' combined experience working with graphene synthesis, characterisation and applications, with over 50 publications in peer-reviewed scientific journals. Contributors to this technology include researchers from The University of Sydney, University of Technology Sydney and The Queensland University of Technology.

Could this technology provide you with a competitive edge?

Contact us to find out more about our licensing and investment options.

Contact us

Find out how we can help you and your business. Get in touch using the form below and our experts will get in contact soon!

CSIRO will handle your personal information in accordance with the Privacy Act 1988 (Cth) and our Privacy Policy.

First name must be filled in

Surname must be filled in

I am representing *

Please choose an option

Please provide a subject for the enquriy

0 / 100

We'll need to know what you want to contact us about so we can give you an answer

0 / 1900

You shouldn't be able to see this field. Please try again and leave the field blank.