Investigation of 7-((dioctylamino)methyl)quinoline-8-ol for uptake and removal of uranyl ions |
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| Authors: | Fatiha Zaoui Mohamed Amine Didi Didier Villemin |
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| Affiliation: | 1. Laboratory of Separation and Purification Technologies, Chemistry Department, Faculty of Sciences, Tlemcen University, BP119, Tlemcen, Algeria
2. Laboratoire de Chimie Moléculaire et Thio-organique, UMR CNRS 6507, INC3 M, FR 3038, ENSICAEN & Université de Caen, 14050, Caen, France
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| Abstract: | A new 8-hydroxyquinoline derivative extractant was synthesized via the Mannich reaction from a secondary amine. Various analytical techniques (1H, 13C NMR, FTIR, mass spectroscopy) were used to characterize our product. The use of this new extractant for the uptake and removal of uranyl ions in aqueous solution was investigated. Conditions for an effective sorption were optimized with respect to different experimental parameters in batch process. The results showed that the extraction rate increases for solutions with a pH in the range [0.65–1.13]. The total sorption capacity was 105 (mg g?1) under optimum experimental conditions. The extraction of UO2 2+ was found to be quantitative (100 %) at initial uranyl concentration less than or equal to 41.59 mg/L. Thermodynamic parameters showed the adsorption of an endothermic process and a spontaneous nature, respectively. |
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