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Elsheikh, M.A., Abidin, Z. Matsue, N. and Henmi, T. (2008) Competitive Adsorption of Oxalate and Phosphate on Allophane at Low Concentration. Clay Science, 13, 181-188.

has been cited by the following article:

  • TITLE: Mutual Adsorption of Lead and Phosphorus onto Selected Soil Clay Minerals

    AUTHORS: Mohammed Abdalla Elsheikh, Pardon Muchaonyerwa, Erni Johan, Naoto Matsue, Teruo Henmi

    KEYWORDS: Allophane, Kaolinite, Montmorillonite, Mutual Adsorption, Lead and Phosphorus

    JOURNAL NAME: Advances in Chemical Engineering and Science, Vol.8 No.2, April 9, 2018

    ABSTRACT: Mutual adsorption of lead (Pb) and phosphorus (P) at pH 5 onto three soil clays materials (kaolinite, montmorillonite, and allophane) was studied to know interaction of the anion and the cation at surface of the clays. Adsorption of Pb was determined on montmorillonite, kaolinite and allophane with the following pretreatments; 1) untreated clay (control), 2) phosphate treated clay (P-clay) and 3) clay pre-treated with both P and Pb (P-Pb-clay). Adsorption of P was determined on montmorillonite, kaolinite and allophane with the following pretreatments; 1) control 2) Pb treated clay (Pb-clay) and 3) P-Pb-clay. The adsorption of Pb on the untreated clays was in the order: montmorillonite > allophane > kaolinite. On allophane and kaolinite Pb adsorption was in the order P-clay > P-Pb-clay > control. For montmorillonite, the trend was: P-Pb-clay = control > P-clay. Phosphorus adsorption was in the order Pb-clay = P-Pb-clay > control for montmorillonite and kaolinite, Pb-clay > control > P-Pb-clay for allophane. The findings suggested that pre-treatment with phosphate increases Pb adsorption on kaolinite and allophane, and decrease on montmorillonite, while pretreatment with Pb increases phosphate sorption on all clays, and both Pb and P increased adsorption on montmorillonite and kaolinite and decrease on allophane.