Gas Separation Membrane Comprising Metal-Organic Framework and Method of Manufacturing Same

Abstract

A gas separation membrane and a method of manufacturing the same are provided. The gas separation membrane includes a matrix comprising a polymer resin and a metal-organic framework (MOF) dispersed in the matrix. A method of manufacturing a gas separation membrane includes preparing a composition comprising a polymer resin monomer, a solvent and a metal-organic framework, casting the composition on a substrate, and polymerizing the polymer resin monomer.

What is claimed is: 
     
         1 . A gas separation membrane, comprising:
 a matrix comprising a polymer resin; and   a metal-organic framework (MOF) dispersed in the matrix.   
     
     
         2 . The gas separation membrane of  claim 1 , wherein the polymer resin comprises a resin selected from the group consisting of polyimide, polysulfone, polydimethylsiloxane (PDMS), polyvinylidene fluoride (PVDF) and combinations thereof. 
     
     
         3 . The gas separation membrane of  claim 1 , wherein the metal-organic framework comprises a metal ion or a metal ion cluster and an organic ligand for connection thereof. 
     
     
         4 . The gas separation membrane of  claim 3 , wherein the metal ion comprises an ion of a metal selected from the group consisting of Zr, Hf, Cr, Ti, Al, Fe, Cu, Co, Mn, Mg, Ni and combinations thereof. 
     
     
         5 . The gas separation membrane of  claim 3 , wherein the organic ligand comprises an organic ligand selected from the group consisting of aromatic dicarboxylic acid, aromatic tricarboxylic acid, imidazole compound and combinations thereof. 
     
     
         6 . The gas separation membrane of  claim 1 , wherein the metal-organic framework comprises a framework selected from the group consisting of UiO-66, UiO-66-NH 2 , UiO-67, MIL-101, MIL-125, MIL-53, MIL-100, HKUST-1, Co(fm) 2 , Mn(fm) 2 , Mg(fm) 2  and combinations thereof. 
     
     
         7 . The gas separation membrane of  claim 1 , wherein the metal-organic framework is a porous crystalline compound, an average diameter of pores therein ranging from 0.5 nm to 10 nm. 
     
     
         8 . The gas separation membrane of  claim 1 , wherein the metal-organic framework has a specific surface area of 100 m 2 /g or more. 
     
     
         9 . The gas separation membrane of  claim 1 , wherein an amount of the metal-organic framework is 5 wt % to 20 wt %. 
     
     
         10 . The gas separation membrane of  claim 1 , wherein the gas separation membrane has a thickness of 10 μm or more. 
     
     
         11 . A method of manufacturing a gas separation membrane, the method comprising:
 preparing a composition comprising a polymer resin monomer, a solvent and a metal-organic framework;   casting the composition on a substrate; and   polymerizing the polymer resin monomer.   
     
     
         12 . The method of  claim 11 , wherein the polymer resin monomer comprises a monomer of a polymer resin selected from the group consisting of polyimide, polysulfone, polydimethylsiloxane (PDMS), polyvinylidene fluoride (PVDF) and combinations thereof. 
     
     
         13 . The method of  claim 11 , wherein the metal-organic framework comprises a metal ion or a metal ion cluster and an organic ligand for connection thereof. 
     
     
         14 . The method of  claim 13 , wherein the metal ion comprises an ion of a metal selected from the group consisting of Zr, Hf, Cr, Ti, Al, Fe, Cu, Co, Mn, Mg, Ni and combinations thereof. 
     
     
         15 . The method of  claim 13 , wherein the organic ligand comprises an organic ligand selected from the group consisting of aromatic dicarboxylic acid, aromatic tricarboxylic acid, imidazole compound and combinations thereof. 
     
     
         16 . The method of  claim 11 , wherein the metal-organic framework comprises a framework selected from the group consisting of UiO-66, UiO-66-NH 2 , UiO-67, MIL-101, MIL-125, MIL-53, MIL-100, HKUST-1, Co(fm) 2 , Mn(fm) 2 , Mg(fm) 2  and combinations thereof. 
     
     
         17 . The method of  claim 11 , wherein the metal-organic framework is a porous crystalline compound, an average diameter of pores therein ranging from 0.5 nm to 10 nm. 
     
     
         18 . The method of  claim 11 , wherein the metal-organic framework has a specific surface area of 100 m 2 /g or more. 
     
     
         19 . The method of  claim 11 , wherein the gas separation membrane comprises 5 wt % to 20 wt % of the metal-organic framework. 
     
     
         20 . The method of  claim 11 , wherein the polymer resin monomer is polymerized by thermally treating the composition cast on the substrate.