Carbon nanotube sheet for air or water purification
AssigneeNanocomp Technologies, Inc.
InventorDavid Gailus
Life of this patent
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Abstract
The present disclosure provides a filter for removing contaminants from a liquid or gaseous medium including a woven or nonwoven sheet of entangled carbon nanotubes. The present disclosure also provides a method for reducing the concentration of contaminants in a liquid or gaseous medium by contacting the liquid or gaseous medium with the filter.
Claims5
A filter for removing contaminants from a liquid or gaseous medium comprising a nonwoven sheet of entangled carbon nanotubes having a length of between 1-10 mm, wherein the entangled carbon nanotubes are further characterized as having two or more of the following characteristics:
- (i) a diameter of between about 2-20 nm, (ii) a density of between about 0.7-1.9 g/cm3, (iii) an aspect ratio of at least about 250,000, (iv) a strain to failure of between about 1.8-7%, and (v) a surface area from about 100-300 m2/g and wherein the nonwoven sheet further comprises an input configured for receiving energy from a power source.
A cabin air filter comprising a housing having an inlet, an outlet, a cavity positioned between the inlet and outlet and a nonwoven sheet of entangled carbon nanotubes having a length of between 1-10 mm, wherein the entangled carbon nanotubes are further characterized as having two or more of the following characteristics:
- (i) a diameter of between about 2-20 nm, (ii) a density of between about 0.7-1.9 g/cm3, (iii) an aspect ratio of at least about 250,000, (iv) a strain to failure of between about 1.8-7%, and (v) a surface area from about 100-300 m2/g disposed within the cavity and wherein the nonwoven sheet further includes an input configured to receive electrical energy from a power source.
Dependencies are inferred from the claim text.