Image: Water splash.
Original Published Date: 
Thursday, March 10, 2016

A new type of graphene-based filter could be the key to managing the global water crisis, according to research supported by the ARC. The new graphene filter allows water and other liquids to be filtered nine times faster than the current leading commercial filter. According to the World Economic Forum’s Global Risks Report, lack of access to safe, clean water is the biggest risk to society over the coming decade. Yet some of these risks could be mitigated by the development of this filter, which is so strong and stable that it can be used for extended periods in the harshest corrosive environments, and with less maintenance than other filters on the market. Associate Professor Mainak Majumder from Monash University said the key to making their filter was developing a viscous form of graphene oxide that could be spread very thinly with a blade. “This technique creates a uniform arrangement in the graphene, and that evenness gives our filter special properties,” he said. This technique allows the filters to be produced much faster and in larger sizes, which is critical for developing commercial applications. The graphene-based filter could be used to filter chemicals, viruses, or bacteria from a range of liquids. It could be used to purify water, dairy products or wine, or in the production of pharmaceuticals.

Media issued by Monash University.

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Image courtesy: M Hansson 339988 SXC ID