Application of polyaniline impregnated mixed phase Fe₂O₃, MnFe₂O₄ and ZrO₂ nanocomposite for rapid abatement of binary dyes from aqua matrix: response surface optimisation

Wastewater loaded with toxic dyes causes serious environmental problems because of their high toxicity and needs to be treated before disposal. In this research, mixed phase Fe2O3, MnFe2O4 ZrO2 nanocomposite was impregnated onto polyaniline prepare a new (Fe-Mn-Zr/PANI-NC). The produced utilised adsorb methyl orange (MO) eosin yellow (EY) from binary dye solution. response surface methodology (RSM) based optimisation showed that MO EY can removed ~98% efficiency under optimal experimental conditions. adsorption process quick in the wide solution pH range 2.0 5.0 equilibrium achieved within 5 min reaction at 5.0. mainly driven by strong electrostatic attraction ?-? interaction between molecules Fe-Mn-Zr/PANI-NC. Kinetic study reveals applicability pseudo-second-order intra-particle diffusion model maximal capacity Fe-Mn-Zr/PANI-NC computed using Langmuir isotherm found 217.39 mg/g for 117.65 dye. Therefore it concluded potential adsorbent remediation wastewater due capacity, short time, reusability favourability pH.