Graphene-enhanced asphalt to be tested in Dartford, UK

Highways contractor Amey and its client Kent County Council will be testing Gipave, an Italian graphene-based asphalt supermodifier said to extend pavement life.

The trial is taking place as part of the Association of Directors of Environment, Economy, Planning & Transport (ADEPT) Smart Places Live Labs programme funded by the Department for Transport of the UK.

Directa Plus to supply Iterchimica with graphene materials for asphalt applications

Directa Plus has reported that a deal to supply a special grade of its G+ graphene product, known as ITC1, to its partner, Iterchimica. The G+ product is the differentiating component of Gipave, an asphalt super-modifier developed by Directa Plus and Iterchimica and follows successful trials in Italy and the UK.

The agreement signed by the companies provides for the exclusive supply of the G+ graphene product to Iterchimica in the asphalt and bitumen sector worldwide and is for an initial duration of three years.

Rice team transforms waste into graphene in a flash

A team of researchers at the Rice University lab of chemist James Tour has designed a ‘Green’ process that produces pristine graphene in bulk using waste food, plastic and other materials. According to the team, this process can help facilitate a reduction of the environmental impact of concrete and other building materials.

The new process can turn bulk quantities of just about any carbon source into graphene flakes. The process is quick and cheap; Tour said the “flash graphene” technique can convert a ton of coal, food waste or plastic into graphene for a fraction of the cost used by other bulk graphene-producing methods.

Graphene Flagship partners develop a graphene-titania photocatalyst that gets rid of NOx pollutants

Graphene Flagship partners the University of Bologna, Politecnico di Milano, CNR, NEST, Italcementi HeidelbergCement Group, the Israel Institute of Technology, Eindhoven University of Technology, and the University of Cambridge have developed a graphene-titania photocatalyst that degrades up to 70% more atmospheric nitrogen oxides (NOx) than standard titania nanoparticles in tests on real pollutants.

To address the problem of atmospheric pollution, researchers worldwide are on the hunt for new ways to remove pollutants from the atmosphere, and photocatalysts such as titania are a good way to do this. When titania is exposed to sunlight, it degrades nitrogen oxides – which are very harmful to human health – and volatile organic compounds present at the surface, oxidizing them into inert or harmless products.