Absorbent and/or filter materials comprising open cell foams coated with photocatalytic titanium dioxide, and methods of making and using the same
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United States of America Patent
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Issued Date -
Jul 31, 2008
app pub date -
Jan 29, 2007
filing date -
Jan 29, 2007
priority date (Note) -
Abandoned
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Abstract
Filter and/or absorbent materials comprising an open cell foam having a surface, wherein the surface of the open cell foam is at least partially coated with a layer comprising photocatalytic titanium dioxide; methods for making such materials comprising: (a) providing a mixture comprising photocatalytic titanium dioxide in a binder; (b) immersing an open cell foam article in the mixture; (c) removing the article from the mixture and removing excess mixture from the article; and methods of treating gases or liquids by passing the gas or liquid through such a material wherein the material has been activated by UV radiation are described.
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