Membrane based on graphene and method of manufacturing same
Disclosed herein are a graphene-based membrane and a method of manufacturing the same. The graphene-based membrane includes: monolayer graphene containing defects; a deposition layer disposed on the defects; and nanopores surrounded by the deposition layer. The method of manufacturing a graphene-based membrane includes forming a monolayer graphene sheet and partially forming a deposition layer on the graphene sheet.
1. A graphene-based membrane, comprising:
a monolayer graphene having defects; and
a deposition layer selectively deposited on boundaries of the defects, whereby forming pores surrounded by the deposition layer;
wherein the deposition layer comprises a material more hydrophilic than the monolayer graphene.
2. The graphene-based membrane according to claim 1 , wherein the deposition layer comprises at least one of a metal oxide and a metal.
3. The graphene-based membrane according to claim 1 , wherein the deposition layer is composed of a single layer.
4. The graphene-based membrane according to claim 1 , wherein the pores has a size of 0.1 nm to 1 μm.
5. A method of manufacturing a graphene-based membrane, comprising:
forming a monolayer graphene sheet having defects; and
forming a deposition layer on boundaries of the defects, whereby forming pores surrounded by the deposition layer;
wherein the deposition layer comprises a material more hydrophilic than the monolayer graphene.
6. The method according to claim 5 , wherein the graphene sheet is formed by chemical vapor deposition.
7. The method according to claim 5 , wherein the deposition layer is formed by atomic layer deposition.