Abstract
2-hydroxy-5-nonyl-acetophenoneoxime, di-2,4,4-trimethylpentyl phosphinic acid, and a tertiary amine were bound on the silica surface after surface modification. The adsorption of the metal chelating agents appears to be due to physical attraction such as van der Waals interactions and not covalent bonding. Stability tests show that the adsorbents are stable under acidic conditions. Batch tests were conducted for heavy metal ion adsorption and elution. Heavy metal ions which were adsorbed to the surface of the adsorbents could be recovered by elufion with 0.1 M HC1.
This is a preview of subscription content, log in via an institution to check access.
References
Alimarin, I., Fadeeva, V., Kudiyavtsev, G. and Loskutova, I., “Concentration, Separation and Determination of Scandium, Zirconium, Hafnium and Thorium with a Silica-based Sulfonic Acid Cation-exchange,”Tatanta,34, 103 (1987).
Deorkar, N. V. and Tavlarides, L. L., “Zinc, Cadmium, and Lead Separation fi-om Aqueous Streams using Solid-phase Extractants”Ind Eng. Chem. Res.,36, 399 (1997).
Fadeeva, V. I., Tikhomirova, T. I., Yuferova, I. B. and Kudryavtsev, G. V., “Preparation, Properties and Analytical Application of Silica with Chemically Grafted Hydroxamic Acid Groups,”Anat. Chim. Acta,219, 201 (1989).
Mahmoud, M. and Soliman, E., “Silica-immobilized Formylsalicyclic Acid as a Selective Phase for the Extraction of Iron(III),”Tatanta,44, 15 (1997).
Marshall, M. and Mottola, H., “Synthesis of Silica-immobilized 8-Quinolmol with (Almnophenyl)Tmnethoxysilane,”Anat. Chem.,55, 2089 (1983).
Ritcey, G. and Ashbrook, A., “Solvent Extraction” Part I, Elsevier, Amsterdam (1984).
Shriver, D. E, Atkins, R W. and Langford, C. H., “Inorganic Chemistly” Oxford University Press (1994).
Stumn, W., “Chemistry of the Solid-Water Interface,” John Wiley & Sons, Inc. (1992).
Tikhomirova, T. I., Fadeeva, V. I., Kudryavtsev, G. V. and Nesterenko, P. N., “Sorpfion of Noble-metal Ions on Silica with Chemically Bonded Nitrogen-containing Ligands,”Tatanta,38, 267 (1991).
Unger, K. K., “Packing and Stationary Phases in Chromatographic Techniques,” Marcel Dekkel, New York (1990).
Valsaraj, K. T., “Hydrophobic Compotalds in the Environment: Adsorption Equilibrium at the Air-water Interface,”Sep. Sci. Technol.,27, 1633 (1992).
Warshawsky, “Extraction with Solvent Impregnated Resins, Ion Exchange and Solvent Extractior” Marinsky, J. and Marcus, Y., eds., Marcel Dekkel, New York,8 (1981).
Weetall, H. H., “Covalent Coupling Methods for Inorganic Sup-ports Materials”, Methods in Enzymology, Academic Press,135 (1987).
Wu, J., Harwell, J. H. and O’Rear E. A., “Characterization by Ellipsometty of Polymefized Ultm-tlfin Films m a Two-Dimensional Solvent on an Oxide Surface”,Colloid. Surf,26, 155 (1987).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kim, JS., Chah, S. & Yi, J. Preparation of modified silica for heavy metal removal. Korean J. Chem. Eng. 17, 118–121 (2000). https://doi.org/10.1007/BF02789264
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02789264