Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Comparative Study of $Cu^{2+}$ Adsorption of Goethite, Hematite and Kaolinite : Mechanistic Modeling Approach

  • Published : 1998.03.20
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Abstract

The mechanisms of Cu2+ adsorption onto goethite, hematite and kaolinite are different. Goethite and hematite showed a similar adsorption behavior (ionic-strength independent), but kaolinite gave somewhat different result (ionic-strength dependent). These experimenal results were successfully simulated using a surface complexation model, TLM, which defines the inner- or outer-sphere complex. The chemical nature of Cu2+ adsorption onto kaolinite was qualitatively identified by EPR spectroscopy.

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