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Extraction of Co, Ni, Cu, Zn and Cd ions using 2-aminophenylaminopropylpolysiloxane

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Abstract

Insoluble porous solid functionalized ligand system bearing 2-aminophenylaminopropyl chelating ligand of the general formula P–(CH2)3NH–(C6H4)–NH2 was prepared via the sol–gel process, where P represents [Si–O] n polysiloxane network. First, the 2-aminophenylaminopropylsilane agent was prepared by substitution reaction between 3-chloropropyltrimethoxysilane and 1,2-phenylenediamine, followed by hydrolytic polycondensation between 2-aminophenylaminopropylsilane agent and tetraethylorthosilicate(TEOS). The immobilized 2-aminophenylaminopropylpolysiloxane P–(CH2)3NH–(C6H4)–NH2(P–AphA) was characterized by 13C NMR, XPS, and FTIR. The results showed that 1,2-phenylenediamine groups were introduced onto polysiloxane network. The functionalized ligand system exhibits 90–100% metal uptake capacity for all metal ions except Cd2+. The elemental analysis data and the metal uptake capacities of the immobilized ligand system suggest that over than 90% ligand sites were involved in coordination with metal ions except that of cadmium forming 1:1 metal to ligand ratio complexes.

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Authors and Affiliations

  1. Department of Chemistry, The Islamic University of Gaza, P O Box 108, Gaza, Palestine

    Nizam M. El-Ashgar

  2. Department of Chemistry, Al-Azhar University, P O Box 1277, Gaza, Palestine

    Issa M. El-Nahhal

  3. ITODYS, Université Paris 7, Denis Diderot, associé au CNRS (UMR 7086), 1 rue Guy de la Brosse, 75005, Paris, France

    Mohamed M. Chehimi

  4. Laboratoire de Chimie de la Matière Condensée, Université Paris VI, 4 place Jussieu, 75252, Paris, France

    Florence Babonneau & Jacques Livage

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  1. Nizam M. El-Ashgar
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  2. Issa M. El-Nahhal
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  3. Mohamed M. Chehimi
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  4. Florence Babonneau
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  5. Jacques Livage
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Correspondence to Issa M. El-Nahhal.

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El-Ashgar, N.M., El-Nahhal, I.M., Chehimi, M.M. et al. Extraction of Co, Ni, Cu, Zn and Cd ions using 2-aminophenylaminopropylpolysiloxane. Environ Chem Lett 8, 311–316 (2010). https://doi.org/10.1007/s10311-009-0223-0

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