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Tag:

titanium dioxide

Coating for Roof Tiles Could Help Clear Smog-Causing Air Pollutants

Coating for Roof Tiles Could Help Clear Smog-Causing Air Pollutants

written by Yale Environment 360

Engineering students have created a roof tile coating that, when applied to an average-sized residential roof, breaks down the same amount of smog-causing nitrogen oxides per year as a car driven 11,000 miles makes.

If applied to one million roofs, the titanium-dioxide based coating, which costs roughly $5 per roof, could clear 21 tons of nitrogen oxides each day, the team calculated. That could put a noticeable dent in atmospheric levels of the pollutant; in Southern California, for example, an average of 500 tons of nitrogen oxides are emitted daily.

The team, which was recently recognized in a U.S. Environmental Protection Agency student design contest, showed that their tiles could remove 88 to 97 percent of nitrogen oxides in laboratory tests — a feat that other roof tile prototypes have not demonstrated.



June 6, 2014 1 comment
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Latest Developments in Solar Power

written by Walter Wang

Researchers are busy trying to develop solar energy, both in terms of efficiency as well as materials and manufacturing processes.

At the University of Notre Dame, researchers have developed what they call a ‘solar paint’ that could be

Continue Reading


December 23, 2011 0 comment
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