The nano-composite Bi2Fe4O9-GO is prepared in solvothermal approach as adsorbent for the purposes of removal of Methylene Blue (MB) dye from aqueous effluents. The material Bi2Fe4O9-GO is characterized by XRD, FESEM, EDX, BET surface area measurement, XPS and Zeta potential measurement at various pH. The adsorption process attribute good agreement for the pseudo 2nd order adsorption kine-tics at various temperature. Isotherm analysis in dye uptake at various concentration shows closeness towards Langmuir isotherm with monolayer capacity value (qe = 55.46 mgg-1). The nature of adsorption is endothermic and pH sensitive. The Gibb’s free energy calculation and reusability study suggest physisorption interaction between adsorbent-adsorbate, indicating perfect adsorbent for adsorption process
doi.org/10.32737/0005-2531-2023-2-78-96