Nanoparticles To Clean Drinking Water

Credit: iStockphoto

From Cosmos:

BEIJING: Scientists have developed nanotechnology that purifies water using only visible light, it continues working in the dark and it kills the tougher microbes to boot.

Light is often used as a water purifier and existing methods rely on processes stimulated by ultraviolet (UV) light.

But UV accounts for just 5% of daylight so a method using visible light — which accounts for almost half — is more desirable.

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