چكيده به لاتين
In this study, Mg-Al LDH hydrophilic nanoparticles were successfully synthesized by the co-precipitation method and applied to enhance the surface properties and performance of the PVDF ultrafiltration membrane. The membranes with different polymer, pore-former, and nanoparticle concentrations were fabricated with phase inversion approach and studied to find the optimum conditions. Finally, these optimal values were transferred to the hollow fiber matrix. Hollow fiber mixed- matrix membranes with 3 different nanoparticle contents by the dry/wet-spinning method were prepared, and its separation performance was investigated against protein removal, diclofenac sodium, and amoxicillin. The FT-IR, XRD, FESEM, AFM, and water contact angle analysis were performed to characterize nanoparticles and membranes, generally. The results show a 30-degree decrease in contact angle, increased porosity, and average pore size, improved roughness, and anti-fouling properties for membranes containing 0.5% Mg-Al LDH compared to the neat membrane. Pure water flux reached 202.73 (LMH), BSA, diclofenac, and amoxicillin rejection were 99%, 99.3%, and 98.79%, respectively. The FRR for all feeds were above 96%.
