Photocatalyst and pulsed light synergism in deactivation of cont

Details Photocatalyst and pulsed light synergism in deactivation of cont Photocatalyst and pulsed light synergism in deactivation of cont

1996-04-03

1997-08-19

Yeung, George

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Using direct contact with electrical or electromagnetic...

53167, 53426, 422 28, 422292, A61L 200, B65B 5500

Patent

active

056585306

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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