The ongoing COVID-19 pandemic has changed the world in many ways. Now, scientists have quantified an effect that lies a few links down the chain, finding that solar panels in certain cities have seen a boost in output, due to reduced air pollution.
A new solar-powered catalyst made of graphene and titanium dioxide nanoparticles can pluck pollutants out of the air, much more efficiently than others. The catalyst could be coated onto building or street surfaces to improve air quality in cities.
Through his pollution-fighting projects, Dutch designer Daan Roosegaarde is bringing to light the importance of clean air, most notably through his Smog Free Towers. And as we learned in our interview with the inventor and artist, his penchant for cleaning up isn't limited to our home planet.