| abstract |
The invention provides a light-responsive metal organic framework mixed matrix membrane, belonging to the technical field of membrane separation. The light-responsive metal-organic framework (CE-Azo-Uio-66) and the polymer are physically blended to prepare a mixed matrix membrane, and the introduced CE-Azo-Uio-66 is a porous material, has good water stability, is acid-resistant and alkali-resistant, and meets the condition of membrane desulfurization. CE-Azo-Uio-66 has optically active Azo groups and crown ether groups, the Azo groups can undergo photoisomerization, the Azo groups in CE-Azo-Uio-66 can undergo cis-trans isomerization, and the-N-group as a basic site can promote SO 2 Transferring; the crown ether group being SO 2 Providing more delivery sites to promote mixingSelectivity of the matrix membrane. The light-responsive metal-organic framework mixed matrix membrane is introduced into the polymer membrane to promote SO 2 Increasing the selectivity of the mixed matrix membrane, thereby increasing the SO 2 The separation efficiency. |