| الملخص | In this research poly ether sulfone (PES) Flat-sheet membranes are prepared by using phase inversion precipitation method. (DMAC) Dimethyl Acetamide is used as a solvent whereas water was used as external coagulation bath. Effect of ZnO nanoparticle at different contents in casting solution as additive (i.e., 0.03, 0.05, 0.08, 0.1, 0.2, 0.3, and 0.5) g to each casting as well as various external coagulation bath temperatures (EBT) (i.e., 0, 30, and 60 ˚C) on the structural morphology and separation performance are investigated. (PES) flat-sheet membranes are characterized by Atomic Force Microscope (AFM), pure water permeation flux and solute separation. It was found that effect of coagulation bath temperature (CBT) was overcome the effect of zinc oxide (ZnO) nanoparticles on the structure and performance of (PES) membrane. Pore size distribution on the top surface of the (PES) membranes was the best by using 0.3 wt.% (ZnO) in casting solution. The pure water flux of the (PES) membranes enhanced with the increase of the (ZnO) concentration up to 0.05 wt.%. A bit reduction in solute (Dye) separation performance of the (PES) membranes was obtained with addition of (ZnO) nanoparticles in the casting solution. | ar |
