1. New dendritic ionic liquids (DILs) for the extraction of metallic species from water.
- Author
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Hayouni, Safa, Robert, Anthony, Maes, Chloe, Conreux, Alexandra, Marin, Beatrice, Mohamadou, Aminou, and Bouquillon, Sandrine
- Subjects
IONIC liquids ,LIQUID-liquid extraction ,DENDRIMERS - Abstract
Four dendritic ionic liquids (DILs) have been easily synthesized from 3rd generation PAMAM and PPI: PAMAM G3 NH
3 + Tf2 N− (1), PPI G3 NH3 + Tf2 N− (2), PPI G3 NH2 Me+ BF4 − (3) and PAMAM G3 NH2 Me+ BF4 − (4). These DILs are fully characterized by spectroscopic methods (1 H,13 C and19 F NMR) and elemental analysis. Compound 1 is hydrophobic while compounds 2–4 are hydrophilic. In order to apply these DILs for the extraction of aqueous metallic cations (Cu2+ , Ni2+ , Pb2+ , Cd2+ , and Ag+ ), liquid–liquid extraction and dialysis were performed. ICP technology has been used to reveal the amount of metallic cation that has been extracted. Compound 1 shows the best results especially for the extraction of Cu2+ , Pb2+ and Ag+ cations (up to 98%). Two processes have been employed: liquid–liquid extraction and dialysis. [ABSTRACT FROM AUTHOR]- Published
- 2018
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