Hydrophilic graphitic material
Assignee4th Phase Water Technologies, Inc.
InventorChunhong Li
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Abstract
This disclosure relates to a hydrophilic graphitic material. The graphitic material may be a carbon nanotube film having superior chemical, mechanical and electrical properties compared to traditional membrane materials. The hydrophilic graphitic material includes a kosmotropic polymer or kosmotropic molecule coating that increases the hydrophilicity of a graphitic material. Methods for preparing the hydrophilic graphitic material are disclosed along with potential applications and uses.
Claims19
A hydrophilic film, comprising:
- a carbon nanotube (CNT) sheet prepared from floating catalyst chemical vapor deposition having a surface and
- a kosmotropic polymer or kosmotropic molecule,
- wherein the kosmotropic polymer or kosmotropic molecule is selected from the group consisting of SO3, SO3 polymer, SO3 complex, and an ether or a polyether comprising at least one OSO3− group.
A method of removing water from an aqueous solution, comprising:
- introducing an aqueous solution into a device comprising a membrane, the membrane comprising a hydrophilic film which comprises:
- a carbon nanotube (CNT) sheet prepared from floating catalyst chemical vapor deposition having a surface and
- a kosmotropic polymer or kosmotropic molecule adjacent to the surface,
- wherein the kosmotropic polymer or kosmotropic molecule is selected from the group consisting of SO3, SO3 polymer, SO3 complex, and an ether or a polyether comprising at least one OSO3− group;
- and
- passing water through the membrane to produce filtered water.
A process for preparing a hydrophilic film, comprising:
- providing a carbon nanotube (CNT) sheet prepared from floating catalyst chemical vapor deposition;
- and
- treating the sheet with a kosmotropic polymer or kosmotropic molecule selected from the group consisting of SO3, SO3 polymer, or an SO3 complex, and an ether or a polyether comprising at least one OSO3− group.
Dependencies are inferred from the claim text.