Immobilization of Ligands on Surfactant Coated Alumina for Removal of Cations

Faghihian, Hossein. and Sabokrooh, Ebrahim. (2012) Immobilization of Ligands on Surfactant Coated Alumina for Removal of Cations. IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION, 31 (4). pp. 1-9.


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In this research new adsorbents were prepared by modification of surfactant-coated gamma-alumina with three ligands; 1-(2-pyridylazo)-2-naphtol (PAN), dithizone (HDZ) and dimetyl golyoxime (DMG). The adsorbents were used for removal and pre-concentration of Pb+2, Cd+2, Ni+2, Cu+2, Co+2. Aqueous solutions of the metal ions were passed through a column filled with the adsorbent and the retained cations were eluted with nitric acid. Recoveries greater than 96% were obtained for most studied cations. The selectivity of the adsorbent was examined in the presence of different interfering cations. The results showed that the synthesized adsorbents posseses good capacity and selectivity for the most studied cations. The reusability test of the adsorbent showed its capability after five adsorption-elution cycles.

Item Type: Article
Uncontrolled Keywords: Pre-concentration; gamma-alumina; Surfactant-coated alumina; Ligand modification
Subjects: WS Pediatrics
QU Biochemistry
Divisions: Faculty of Medicine
Depositing User: Users 1 not found.
Date Deposited: 14 Aug 2017 06:54
Last Modified: 20 May 2018 05:19

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