Journal of Chemistry / 2016 / Article / Fig 2

Research Article

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

Figure 2

Intraparticle diffusion plots for Cr(III) (a) or Cr(VI) (b) adsorption onto kaolin in the absence and presence of Cu(II) (adsorption conditions: initial concentration for Cr(III) = 300 mg·L−1, for Cr(VI) and Cu(II) = 200 mg·L−1, temperature = 25°C, pH = 4.5, and equilibrium time = 120 min).
(a)
(b)

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