First commercial contract for water filtration membranes enhanced with graphene oxide

UK's G2O Water Technologies has reported securing its first commercial contract for the enhancement of water filtration membranes with graphene oxide.

The Company explains that the advantages of using graphene oxide lie in the enhancement of membrane performance, as it mitigates the effects of fouling – one of the biggest challenges operators of membrane-based water filtration systems face. With a coating of graphene oxide, successfully developed and piloted by the company in the northwest of England in collaboration with Hydrasyst Limited, operators can improve operational efficiency, reduce energy consumption and decrease chemical usage. It is anticipated that this will extend the lifetime of the membranes, as well as significantly reduce the cost and environmental impact of water treatment.

Ora Graphene announces a strategic investment to advance existing graphene endeavors and explore additional application areas

Ora Graphene, producer of free-standing graphene membranes, has announced the closing of its CAD$3 million (around USD$2.46 million) Seed financing round. The deal was led by Ecofuel Fund along with Export Development Canada (EDC), BDC Capital and certain members of New York Angels. Existing investors TandemLaunch, and BoxOne Ventures also participated in the round. In conjunction with the financing, the company was recently awarded a Sustainable Development Technology Canada grant to explore new areas of graphene applications for its technology.

Ora has produced what it refers to as 'the largest sheets of free-standing graphene demonstrating incredible new material properties for multi-purpose commercial utilization'. GrapheneQ™ membranes have already been shown to significantly improve sound quality and reduce energy consumption for global manufacturers of consumer electronics, with applications being developed for exciting new markets opportunities.

Trane Technologies launches graphene-enhanced air purification system for public buses

Trane Technologies’ Thermo King brand has launched a new graphene-based air purification solution for buses that continuously purifies the air while the bus is in operation.

Thermo King says its Air Purification Solution has been independently tested and proven to be 98 percent effective in deactivating certain viruses, including a surrogate for the virus that causes COVID-19.

EPFL scientists develop highly efficient graphene-based carbon dioxide filter

Scientists at EPFL have developed an energy-efficient graphene-based carbon dioxide filter that can extract carbon dioxide out of a gas mix, to then be either stored or converted into useful chemicals.

Professor Kumar Varoon Agrawal at EPFL's School of Basic Sciences (EPFL Valais Wallis) has led a team of chemical engineers to develop the world's thinnest filter from graphene. "Our approach was simple," says Agrawal. "We made carbon dioxide-sized holes in graphene, which allowed carbon dioxide to flow through while blocking other gases such as nitrogen, which are larger than carbon dioxide." The result is a record-high carbon dioxide-capture performance.

Researchers develop method to control graphene nanochannel orientation and dimensions for improved membranes and filters

A team of Brown University researchers has found a way to orient the gaps that form between sheets of graphene that are stacked on top of each other. The tiny gaps, called nanochannels, are positioned by the team in a way that makes them more useful for filtering water and other liquids of nanoscale contaminants.

Structure and fabrication steps leading to vertically aligned Zr-GO/epoxy membranes imageStructure and fabrication steps leading to vertically aligned Zr-GO/epoxy membranes. Image from article

“In the last decade, a whole field has sprung up to study these spaces that form between 2D nanomaterials,” said Robert Hurt, a professor in Brown’s School of Engineering and coauthor of the research. “You can grow things in there, you can store things in there, and there’s this emerging field of nanofluidics where you’re using those channels to filter out some molecules while letting others go through.”