Preparation and performance study of MIL-53(Fe,Al)/PSf blended membrane
MIL-53(Fe,Al),a bimetallic organic framework hydrophilic material,is synthesized via solvothermal method,and blended with polysulfone(PSf)to prepare MIL-53(Fe,Al)/PSf blended membrane through non-solvent induced phase separation method.Influences of the addition amount of MIL-53(Fe,Al)on the structure,hydrophilicity,permeability,retention,and anti-fouling performances of the blended membrane are explored.It is shown that the water contact angle of the blended membrane is 28.81° less than that of the original membrane,reaching 54.78° when the addition amount of MIL-53(Fe,Al)is 0.3 wt%.The pure water flux of the membrane increases by 10.21 times,reaching 179.15 L/(m2·h·bar).The addition of MIL-53(Fe,Al)significantly improves the hydrophilicity and anti-fouling performance of PSf ultrafiltration membrane.
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