the enhancement in dye removal and antifouling capability of pes nanofiltration membrane modified with fumarate-alumoxane nanoparticles

Fumarate-alumoxane nanoparticles (fum-anps) incorporated pes nanofiltration membrane was fabricated via phase inversion to achieve favorable performance as the enhancement in the dye removal and antifouling capacity. ftir spectra of the fum-anps revealed that the carboxylate and hydroxyl functional groups were created on the surface of fum-anps. the strong affinity of fum-anps functional groups with water molecules made the membrane surface more hydrophilic. hence, the modified membrane sample had a higher pure water flux than the bare one. zeta potential data showed that the fum-anps blended pes membrane was negatively charged at a ph value of 6, which is favorable for negatively charged solute rejection. the antifouling behavior of the membranes was analyzed using powder milk solution (8 g/l) in a dead-end filtration system. the obtained results demonstrated that the introduction of fum-anps in the membrane matrix ameliorated the antifouling behavior of the resulting membrane. to further study the performance of the fum-anps incorporated pes membrane, removal of direct red 16 dye was tested. the removal efficiency of direct red 16 with the fum-anps blended pes membrane was 99% while it was 88.2% for the bare membrane sample.