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US 2014/0209541 A1Published application
Filtration medium comprising a carbon oxychalcogenide
Assignee3M Innovative Properties Company
InventorsAllen R. Siedle, Mark R. Stouffer
Life of this patent
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Abstract
Described herein is a filtration medium comprising a carbon substrate having a surface of COxEy, wherein E is selected from at least one of S, Se, and Te; and wherein x is no more than 0.1 and y is 0.005 to 0.3; a filtration device comprising the filtration medium; and methods of removing chloramines from aqueous solutions.
Claims18
A filtration device comprising a fluid conduit fluidly connecting a fluid inlet to a fluid outlet;
- and a filter medium disposed in the fluid conduit;
- the filter medium comprising a carbon substrate having a surface of COxEy, wherein E is selected from at least one of S, Se, and Te;
- and wherein x is no more than 0.1, and y is 0.005 to 0.3.
A method for removing chloramine from aqueous solutions comprising:
- providing an aqueous solution comprising chloramine and contacting the aqueous solution with a composition comprising a carbon substrate having a surface of COxEy, wherein E is selected from at least one of S, Se, and Te;
- and wherein x is no more than 0.1, and y is 0.005 to 0.3.
A method of making a carbon oxychalcogenide comprising:
- contacting a carbon substrate with a chalcogen-containing compound;
- and
- heating to a temperature between 300 to 1200° C. in the presence of oxygen, wherein the form of oxygen is selected from the group consisting of:
- diatomic oxygen, sulfur dioxide, water, carbon dioxide, or combinations thereof.
1 more element
Dependencies are inferred from the claim text.