| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6970432 | Journal of Hazardous Materials | 2016 | 23 Pages |
Abstract
This study aims to develop novel ammonium and phosphonium ionic liquids (ILs) with thiosalicylate (TS) derivatives as anions and evaluate their extracting efficiencies towards heavy metals in aqueous solutions. Six ILs were synthesized, characterized, and investigated for their extracting efficacies for cadmium, copper, and zinc. Liquid-liquid extractions of Cu, Zn, or Cd with ILs after 1-24Â h using model solutions (pH 7; 0.1Â M CaCl2) were assessed using flame atomic absorption spectroscopy (F-AAS). Phosphonium-based ILs trihexyltetradecylphosphonium 2-(propylthio)benzoate [P66614][PTB] and 2-(benzylthio)benzoate [P66614][BTB] showed best extraction efficiency for copper and cadmium, respectively and zinc was extracted to a high degree by [P66614][BTB] exclusively.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Health and Safety
Authors
Raphlin Leyma, Sonja Platzer, Franz Jirsa, Wolfgang Kandioller, Regina Krachler, Bernhard K. Keppler,