Preparation and characterization of PSf/clay nanocomposite membranes with PEG 400 as a pore forming additive

► Effect of clay dosage on the morphology and performance of PSf/clay membranes was studied. ► Clay has a good dispersion in the PSf matrix. ► The addition of clay additive increases the ratio of large pore in the skin layer. ► Increase in clay dosage can enhance the pure water flux and porosity of membranes.