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This Paint Could Clean Both Itself and the Air


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The pollutants clogging our skies aren’t just a health risk; they also cause ugly stains on buildings and other structures. To combat this, chemists have been working for years on a special type of paint that can not only clean itself but may also remove pollutants from the air.

This technology uses titanium oxide nanoparticles that jump-start chemical reactions. When an artificial ultraviolet light source shines on the paint, the nanoparticles react with pollutants to make them break down—theoretically removing them from the nearby air and preventing a discoloring buildup.



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Interesting concept.  I wonder about cost-efficiency and the ultimate disposition of the pollutants that are being broken down into other forms.

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