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The present study describes the Facial preparation of bacterial-resistant cellulose acetate (CA) membranes by using novel non-toxic antibacterial cyanoacetyl microcrystalline cellulose (NACAMC). Different concentrations of (NACAMC) were blended with CA to prepare three antibacterial cellulosic membranes namely: M1, M2 and M3 having hindrance activity against tested strains. The Fourier-transformed infrared spectroscopy (FT-IR) was used to investigate the changes in chemical and physical membrane characteristics. The obtained membranes (M1, M2, and M3) were visually evaluated by scanning electron microscopy (SEM). M2 and M3are characterized by a pore-free upper surface and a porous bottom surface of the membranes in comparison with the CA blank membrane. The water uptake ratio was measured to be 175%, 426%and 707% for M1, M2and M3 respectively. Also, the average pore size distribution for prepared membranes was measured. The Mechanical properties of M1 and M2 were measured which indicates that the tensile strength and elongation are higher in M2 than M1. Antibacterial activity for membranes and (NACAMC) against 5 pathogenic strains were evaluated. These results could be developed for several uses as in wound dressing applications, food packaging, and water treatment antifouling membranes.

Water Desalination is becoming an issue for saving the required potable and drinking water due to shrinkage of pure water. Thus, this work deals with antifouling membrane preparation using poly meric compounds of Polyethersulfone/ Polyvinylalcohol (PES/PVA) with nanomaterials to produce antifouling membrane for water desalination. The PES membrane has prepared by phase inversion process followed by different coating ways. The coating with PVA provided the highest hydrophilic surface. The characterization of prepared membranes was carried out using various analysis methods such as scanning electron microscopy (SEM), mechanical properties, porosity and contact angle. The pore size distribution of prepared membranes was determined using the Brunauer-Emmett-Teller (BET) method. The result showed that the best membrane performance was membrane which has a coating with PVA layer, where rejection reached to 99 %, 95% and 88% as a function of concentration 500, 1500, and 3000 ppm respectively, while the permeate flux reached to 48.4 L/m2.h, 32.3 L/m2.h and 21.5 L/m2.h as a function of concentration 500, 1500, and 3000 ppm respectively.