Newly developed nanofiltration (NF) composite membranes by interfacial polymerization for Safranin O and Aniline blue removal

► Hollow fiber NF membranes were developed by interfacial polymerization. ► The NF membranes exhibited excellent performance for dye removal from aqueous solutions. ► The dye removal performance was maintained over a wide range of pH values. ► The novel NF membranes are promising for industrial wastewater treatment.