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Microfluids for Better Water Purification

(5)Jan-18-11

The Solaqua water purification device combines photocatalysis with microfluids to break down water contaminants more effectively than photocatalysis alone.

Researchers from Hong Kong Polytechnic University created a microfluid reactor, consisting of two glass plates coated with titanium dioxide (Ti02), the active ingredient in many sunscreens. Water passes through the plates via microchannels, which increases the surface area. When the Ti02 is exposed to sunlight it releases electrons which break down contaminants in the water.

According to study author Xuming Zhang, the use of microchannels improved the photoreaction efficiency by more than 100 times.

Microfluids for Better Water Purification

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