Abstract
Two cation-exchange materials, aluminium tungstate (AT) and sodium dodecyl sulphate–aluminium tungstate (SDS–AT), were synthesized. Both samples were characterized by Fourier transform infrared spectroscopy, X-ray diffraction analysis and scanning electron microscopy. The distribution coefficients for various metal ions on SDS–AT cation-exchange material were performed in different solvent systems. On the basis of distribution coefficient values, the SDS–AT cation-exchange material was found to be selective for the very toxic metal ion, Cr3+. The hybrid cation-exchange material offered a variety of technological opportunities for quantitative determination and separation of Cr3+ from synthetic mixtures of metal ions. Some binary and ternary separations of metal ions; viz., Cd2+–Cr3+, Zn2+–Cr3+, Cu2+–Cr3+, Pb2+–Cr3+, Mg2+–Pb2+–Cr3+ and Mg2+–Cd2+–Cr3+, were performed using a packed column of this material.
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Acknowledgment
The Authors extend their appreciation to the Deanship of Scientific Research at King Saud University for funding the work through the research group project no. RGP-VPP-043.
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AL-Othman, Z.A., Naushad, M., Khan, M.R. et al. A Comparative Study on Characterization of Aluminium Tungstate and Surfactant-Based Aluminium Tungstate Cation-Exchangers: Analytical Applications for the Separation of Toxic Metal Ions. J Inorg Organomet Polym 22, 352–359 (2012). https://doi.org/10.1007/s10904-011-9594-3
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DOI: https://doi.org/10.1007/s10904-011-9594-3