Supercritical CO₂ Assisted Synthesis of EDTA-Fe₃O₄ Nanocomposite with High Adsorption Capacity for Hexavalent Chromium

Figure 8

Effect of initial concentration of chromium (VI) for adsorption on IONPs and MIONPs at different initial concentration (200–1000 mg/L), time 180 minutes, pH 2, and temperature 298 K.