Graphene membrane and method for making graphene membrane
Assignee2599218 Ontario Inc.
InventorNifemi Oguntuase
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Abstract
A method for making a membrane includes buffing a first set of graphene platelets onto a surface of a porous substrate to force the graphene platelets into the pores of the substrate, to yield a primed substrate. The method further includes applying a fluid to the primed substrate. The method further includes forcing the fluid through the primed substrate while retaining at least a first portion of the graphene platelets of the first set on the substrate within the pores, to yield a graphene membrane comprising the substrate and a graphene layer platelets lodged within the pores of the substrate.
Claims15
A method for making a membrane, comprising:
- a. buffing a first set of graphene platelets onto a surface of a porous substrate to force the graphene platelets into the pores of the substrate, to yield a primed substrate;
- b. applying a fluid to the primed substrate;
- and
- c. forcing the fluid through the primed substrate while retaining at least a first portion of the graphene platelets within the pores, to yield a graphene membrane comprising the substrate and the graphene platelets filling the pores of the substrate.
A method for making a membrane, comprising:
- a. applying a suspension to a porous substrate, wherein the suspension comprises graphene platelets in a fluid;
- and
- b. forcing the fluid through the porous substrate while retaining a first portion of the graphene platelets within the pores of the porous substrate, to yield a graphene membrane comprising the porous substrate and the graphene platelets filling the pores of the porous substrate, and a secondary suspension comprising a second portion of the graphene platelets in the fluid;
- and
- c. applying the secondary suspension to the graphene membrane, and forcing the fluid through the graphene membrane while retaining a third portion of the graphene platelets within the pores of the porous substrate, to yield a built-up graphene membrane.
Dependencies are inferred from the claim text.