Use of modified silica gel for concentrating Pb (II) and Cd (II) occurring in form of complex anions

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Published: Jun 26, 2007
DOI: https://doi.org/10.26850/1678-4618eqj.v32.2.2007.p13-16
Keywords:
concentration, heavy metal, sorption behaviour, silicagel

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Rubén del Toro Déniz
Camagüey University, Faculty of Chemistry, Camagüey, Cuba.
Marlene Seijo Echevarría
Camagüey University, Faculty of Chemistry, Camagüey, Cuba.
Zaida Fernández Terra
Camagüey University, Faculty of Chemistry, Camagüey, Cuba.
Ana María Peón Espinosa
Camagüey University, Faculty of Chemistry, Camagüey, Cuba.
Humberto Varela de Moya
Camagüey University, Faculty of Chemistry, Camagüey, Cuba.

Abstract

The performance of silica gel, modified by the impregnation with a high molecular weight
quaternary amine (triethyl octadecyl ammonium iodide), used for the concentration of heavy metals
occurring in water is studied. The material under study captures Cd, Pb, which are capable of forming
stable complexes with I - ions.The results obtained about the metal capture, under dynamic conditions,
are described and metal ions are removed by desorption with EDTA and quantified by AAS.

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How to Cite
Déniz, R. del T., Echevarría, M. S., Terra, Z. F., Espinosa, A. M. P., & de Moya, H. (2007). Use of modified silica gel for concentrating Pb (II) and Cd (II) occurring in form of complex anions. Eclética Química, 32(2), 13–16. https://doi.org/10.26850/1678-4618eqj.v32.2.2007.p13-16
Issue
Vol. 32 No. 2 (2007): Eclética Química
Section
Original articles
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