... concentration. Graphite Clay Dye removal Isotherm Thermodynamic Kinetics modeling The starting dye concentration was 40 mg/L, and for the pH-effect investigations, 240 mg/L of adsorbent was combined with 50 mL of dye solution at ≈ 25°C, the suspensions were shaken for 1 h at a velocity of 350 rpm...

... was measured by an UV–vis spectrophotometer. The adsorption equilibrium was studied by plotting adsorption isotherms. The experimental data was fitted to Langmuir and Freundlich isotherms. Findings The adsorption experiments indicated that the PAM-FeSO₄ hybrid polymer has a high adsorption...

... synthesized hydrogel was used as an adsorbent for the removal of dyes from aqueous solutions. In this paper, methylene blue and maxilon blue 5G were selected as representative cationic dyes. In addition, adsorption isotherm models were used to describe the dye adsorption process. Design/methodology...

...), contact time (1-180 min), adsorbent dosage (100-2000 mg L⁻¹) and initial diazinon concentration (0.5–20 mg L⁻¹) on the removal processes were studied. Finally, isotherm and kinetic and of adsorption process of diazinon onto Fe₃O₄@SiO₂ nanocomposites...