| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite having high gas separation performance using a metal-organic framework (MOF).SOLUTION: A metal ion is connected to an acid group by adding a metal compound generating the metal ion for forming an MOF into the aqueous dispersion of a cellulose nanofiber having an average fiber length of 0.1-10 μm, an average fiber diameter of 1-100 nm and an acid group amount of 0.2-2.2 mmol/g. Subsequently, a solvent is replaced with, if desired, an organic solvent (for example, N,N-dimethylformamide), dispersion, centrifugal separation and supernatant removal are repeatedly performed and then a metal ion-cellulose nanofiber composite is obtained.SELECTED DRAWING: Figure 1 |
