Manikanta, P.Naik, N.S.Isloor, A.M.Padaki, M.Nagaraja, B.M.Déon, S.2026-02-042024Process Safety and Environmental Protection, 2024, 186, , pp. 1460-14709575820https://doi.org/10.1016/j.psep.2024.04.083https://idr.nitk.ac.in/handle/123456789/21092ZrO<inf>2</inf> nanoparticles fine-tuned with iron doping (5%Fe-ZrO<inf>2</inf>) were incorporated by the phase inversion method as a supplement in polysulfone (PSf) membrane medium for dye rejection. The prepared nanocomposite membranes were examined using a variety of characterisation techniques. The findings showed that adding 5%Fe-ZrO<inf>2</inf> nanoparticles into the membrane matrix improved its permeability by reducing the contact angle and increasing hydrophilicity. The PSf nanocomposite membrane containing 1 wt% of 5%Fe-ZrO<inf>2</inf> (M<inf>2</inf>) was found to exhibit a dye rejection efficiency of 99% for Eriochrome black-T (EBT) and 98% for Methylene blue (MB), with a flux of 10.2 ±1 LMH. The manufactured membranes can reject dyes and offer commendable productivity and selectivity, making them a popular choice for membrane applications. © 2024 The Institution of Chemical EngineersAromatic compoundsContact angleDyesIron compoundsMembranesNanocompositesNanoparticlesZirconiaDye rejectionDye removalFe-dopedFe-doped ZrO2Iron dopingMixed-matrix membranesNano-composite membranesPhase-inversion methodPolysulphoneToxic dyesWastewater treatment