Sunday, July 24, 2005
Self-Cleaning Buildings to Fight Smog
"Using technology already available for self-cleaning windows and bathroom tiles, scientists hope to paint up cities with materials that dissolve and wash away pollutants when exposed to sun and rain. The idea: UV rays hitting the titanium dioxide coated cement and concrete trigger a catalytic reaction that destroys the molecules of pollutants, including nitrogen oxides."
source:http://science.slashdot.org/article.pl?sid=05/07/24/064246&tid=126&tid=14
source:http://science.slashdot.org/article.pl?sid=05/07/24/064246&tid=126&tid=14