Publisher： John Wiley & Sons Inc
E-ISSN： 1521-3765|21|40|13943-13948
ISSN： 0947-6539
Source： CHEMISTRY - A EUROPEAN JOURNAL, Vol.21, Iss.40, 2015-09, pp. : 13943-13948
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Abstract
AbstractThe designed synthesis of a series of copper(II) specific fluorogenic hydrophobic task‐specific ionic liquids (TSILs) from a new naphthalene‐based tetradentate ligand is reported. Absorption and fluorescence spectral studies reveal both the ligand and its derivative TSILs show exclusive selectivity towards copper(II) ions. The Stern–Volmer method for calculation of the detection limit for ligand and TSIL1–3 shows values of 0.12, 20, 17, and 15 μM, respectively. Extraction and striping studies by doping these TSILs in [bmim][NTf2] demonstrated that these TSILs are recyclable extractants for the selective recovery of CuII ions from a mixture of 14 relevant metal chloride aqueous solutions in biphasic liquid–liquid extraction with approximately 95 % recovery.
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