| abstract |
The invention belongs to the field of ultrafiltration materials, and particularly relates to a zeolite molecular sieve-PVDF-chitosan composite ultrafiltration membrane which is prepared by a method comprising the following steps: mixing polyvinylidene fluoride, a binary solvent, polyvinylpyrrolidone and nano zeolite according to a certain proportion to prepare a precursor solution, carrying out electrostatic spinning to obtain nano composite fibers, and then coating a chitosan layer to obtain the chitosan/chitosan composite fiber. The composite ultrafiltration membrane has good hydrophilicity, water resistance and mechanical property, the chitosan coating can promote the water flux performance and antifouling performance of the composite ultrafiltration membrane by increasing the wettability and porosity, and the prepared hybrid ultrafiltration membrane has high potential in the field of water purification. |