Graphene Catalyst Could Help Scrub Vehicle Smog

Dec-05-19 A graphene and titania composite able to effectively reduce atmospheric pollution from NOx could find its way into buildings and roads.

The solar-powered catalyst developed by the international team is made up of graphene and titania (titanium dioxide), and has proven highly effective at absorbing nitrogen oxides—one of the main pollutants emitted from vehicles. Although the photocatalyst titania has been used previously to capture and convert NOx, the team boosted the material’s efficiency from 45 percent to as much as 70 percent by adding graphene.

According to research coordinator Marco Goisis, “Coupling graphene to titania gave us excellent results in powder form – and it could be applied to different materials, of which concrete is a good example for the widespread use, helping us to achieve a healthier environment."

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