چكيده به لاتين
In this study, a graphene oxide/copper oxide (GO/CuO) hybrid nanoparticle was successfully fabricated using the co-precipitation method. It was then used to improve the properties and performance of pristine polyvinylidene fluoride (PVDF) membrane. Using design expert software, the optimal pristine membrane was determined, and the PVDF-GO/CuO ultrafiltration membrane containing different percentages of GO/CuO was fabricated by the phase inversion method. The analysis results showed that the hydrophilicity of PVDF membrane containing 0.2% by weight of GO/CuO increased compared to pristine membrane; So that the contact angle of the membrane decreased from 80.68 to 60.53 degrees. On the other hand, compared to the pristine membrane, the pure water flux of this modified membrane has increased by about 77% (pure water flux has increased from 101.1 LMH to 178.87 LMH). This membrane also has a 94.28% rejection of bovine serum albumin (BSA), while the rejection for pristine membrane was about 89.74%. This is because of increased hydrophilicity, porosity, average membrane pore size, and decreased membrane surface roughness. The results of the fouling test also show a 42, 8, and 60% reduction in the total fouling, reversible fouling, and irreversible fouling. This indicates that the antifouling property of the resulting modified membrane has been significantly improved. PVDF-GO/CuO membrane performed better than the pristine membrane, but the results showed that this membrane also has better properties than PVDF/GO and PVDF/CuO membranes. Overall, the results clearly show that the modified PVDF-GO/CuO membrane has excellent potential for water treatment.
