Chalcogel

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A chalcogel is an aerogel made from chalcogens (the column of elements on the periodic table beginning with oxygen) such as sulfur and selenium, with platinum, and other elements.[1] Research is ongoing, and metals less expensive than platinum have also been used in its creation.

They preferentially absorb heavy metals,[2] showing promise in absorbing pollutants mercury, lead, and cadmium from water.[3]

[edit] References

  1. ^ Biello, David (July 26, 2007). Heavy Metal Filter Made Largely from Air. Scientific American.
  2. ^ S. Bag et al. Porous Semiconducting Gels and Aerogels from Chalcogenide Clusters. Science 2007-07-27: Vol. 317. no. 5837, pp. 490-493, DOI: 10.1126/science.1142535
  3. ^ Carmichael, Mary. First Prize for Weird: A bizarre substance, like 'frozen smoke,' may clean up rivers, run cell phones and power spaceships. Newsweek International, 2007-08-13. Retrieved on 2007-08-05.
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