Preparation and characterization of novel PSf/PVP/PANI-nanofiber nanocomposite hollow fiber ultrafiltration membranes and their possible applications for hazardous dye rejection

In this study, novel nanocomposite hollow fiber membranes were spun by dry-wet process incorporating PANI (polyaniline)-nanofibers and PVP (Polyvinylpyrrolidone) into Polysulfone (PSf). The novel nanocomposite membrane was extensively studied for its morphology, hydrophilicity, surface charge, thermal stability, porosity and membrane hydraulic resistance. The membranes showed maximum rejection of 99.25% for hazardous dye Reactive Red 120 (RR120) at 300 ppm concentration when subjected to a pressure of 2 Kg/cm2.232