Effects of Cu(II) on the Adsorption Behaviors of Cr(III) and Cr(VI) onto Kaolin

<div>Isotherm plots for Cr(III) (a) or Cr(VI) (b) adsorption by kaolin in single and binary solutions at the fitting of Langmuir and Freundlich isotherm models (adsorption conditions: temperature = 25°C, pH = 4.5, and equilibrium time = 120 min).</div>

Journal of Chemistry

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Figure 3

Figure 3: Effects of Cu(II) on the Adsorption Behaviors of Cr(III) and Cr(VI) onto Kaolin 