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Thursday, 24th February 2005 (4121 views)

Nanoparticles of gold and palladium could be used to help tackle a persistent pollutant, according to US scientists.<br/> <br/>Researchers working at Rice University's Centre for Biological and Environmental Nanotechnology say they have identified the two precious metals as optimum catalysts to tackle trichloroethene (TCE). <br/> <br/>The research will be outlined in the next edition of the journal Environmental Science and Technology, which makes clear the potential of the new technology.<br/> <br/>"The advantages…are well-documented, but so is the cost," explained lead researcher Michael Wong. <br/> <br/>"Using nanotechnology, we were able to maximize the…atoms that come in contact with TCE molecules and improve efficiency."<br/> <br/>The breakthrough could hold significant advantages for dealing with TCE, which is typically used as a solvent when treating electronics.<br/> <br/>It is reputed as a particularly toxic and prevalent groundwater pollutant, with the US defence department calculating the standard cost of treating the 1,400 TCE-contaminated sites at a staggering $5 billion.<img src="http://directnews.dehavilland.co.uk/dn.gif?feedid=196&itemid=7875686"/>

 

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