ZIF-67/SA@PVDF Ultrafiltration Membrane with Simultaneous Adsorption and Catalytic Oxidation for Dyes

Due to their stable chemical properties and complex structures, dyes are difficult be removed from water. Herein, a ZIF-67/SA@PVDF (ZSA3@PVDF) mixed matrix membrane has been fabricated by incorporating silicon aerogel (SA) zeolitic imidazolate framework material 67 (ZIF-67) nanoparticles in polyvinylidene fluoride (PVDF) for the removal degradation of The influence SA ZIF-67 on morphology structure was confirmed using scanning electron microscope (SEM) atomic force (AFM). In ZSA3@PVDF membrane, both highly porous nanomaterials that possess good adsorption capacity, as Brunauer–Emmett–Teller (BET) result. addition, cobalt (Co) element can catalyze peroxymonosulfate (PMS) generate strong oxidizing sulfate radicals (SO42−), contributing improving regeneration capacity membrane. water flux is 427.6 L m−2 h−1 bar−1, Methylene blue (MB) rate higher than 99% when filtrating 100 mL MB solution (5 mg/L). test result shows still above 98% after five cycles MB. self-cleaning experiment promotes catalytic performance showing better ability. provides new strategy advanced purification dye wastewater.