As well as generating renewable energy, wind turbines might soon remove air pollution too.
Zhong Lin Wang at the Georgia Institute of Technology in Atlanta and his colleagues have developed a wind-powered device that can simultaneously absorb and break down air pollutants.
It resembles a horizontal wind turbine with five 25-centimetre diameter transparent hemispheres at the end of arms that act as cup-like blades. These also funnel air to a water-filled chamber where nitrogen oxide gases dissolve to produce nitrate and nitrite ions.
These gases, which are found in vehicle …
source: newscientist.com