Photocatalyst and pulsed light synergism in deactivation of contaminants
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United States of America Patent
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Aug 19, 1997
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N/A
app pub date -
Apr 3, 1996
filing date -
Sep 27, 1994
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Abstract
An improved method and apparatus for deactivating contaminants involves illuminating one portion of the contaminants with light having frequencies within a first prescribed frequency range, resulting in the deactivating of the one portion of the contaminants, and illuminating another portion of the contaminants with light having frequencies within a second prescribed frequency range, the other portion being at a titanium dioxide supplemented surface, so as to initiate the release of a highly reactive agent in a reaction in which titanium dioxide serves as a catalyst. The highly reactive agent deactivates the other portion of the contaminants.
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