초록

There is provided a high efficient gas separation membrane of two or more layers, which comprises a separating layer of 3-dimensional nanostructure and a supporting layer, wherein the 3-dimensional nanostructure can maximize a surface area per unit permeation area.

대표청구항 ▼

What is claimed is: 1. A gas separation membrane of two or more layers comprising a separating layer of 3-dimensional nanostructure and a supporting layer, wherein the 3-dimensional nanostructure contains the array of hollow tubes whose heads are closed and bottoms are open. 2. The gas separation

What is claimed is: 1. A gas separation membrane of two or more layers comprising a separating layer of 3-dimensional nanostructure and a supporting layer, wherein the 3-dimensional nanostructure contains the array of hollow tubes whose heads are closed and bottoms are open. 2. The gas separation membrane according to claim 1, wherein the separating layer is comprised of an organic polymer with a high selectivity selected from the group consisting of polycarbonate, polydimethylphenylene oxide, polysulfone, polyimide, polypyrrole, polyaniline, polyvinyl alcohol, and the mixture and copolymer thereof. 3. The gas separation membrane according to claim 1, wherein the supporting layer is fabricated from a material having a high permeability. 4. The gas separation membrane according to claim 3, wherein the supporting layer is fabricated from a material selected from the group consisting of an organic polymer, a porous organic polymer, an inorganic material, a porous metal and the mixture thereof. 5. The gas separation membrane according to claim 4, wherein the organic polymer is selected from the group consisting of natural rubber, silicone polymer, poly(1-trimethyl silyl-1-propyne), polysulfone, polycarbonate, polyethylene oxide, polydimethyiphenylene oxide, polyimide, polypyrrole, polyaniline, polyethylene terephthalate, and the mixture and copolymer thereof. 6. The gas separation membrane according to claim 4, wherein the inorganic material is selected from the group consisting of titania, silica, zirconia, alumina, carbon, glass, and the mixture thereof. 7. The gas separation membrane according to claim 4, wherein the porous metal is stainless steel or silver. 8. The gas separation membrane according to claim 1, further comprising an additive selected from the group consisting of a metal, a porous inorganic oxide and the mixture thereof. 9. The gas separation membrane according to claim 8, wherein the metal is silver or gold. 10. The gas separation membrane according to claim 8, wherein the porous inorganic oxide is silica or titania. 11. A gas separation membrane system, comprising a hollow fiber module or a flat sheet module fabricated from the gas separation membrane according to claim 1.