Selective Transport of Silver(I) Cation Across a Bulk Liquid Membrane Containing Bis-β-enamino Ester as Ion Carrier | Zendy

Somayeh Tarahomi | Zendy; Gholam Hossein Rounaghi | Zendy; Hossein Eshghi | Zendy; Leili Daneshvar | Zendy; Mahmoud Chamsaz | Zendy

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Selective Transport of Silver(I) Cation Across a Bulk Liquid Membrane Containing Bis-β-enamino Ester as Ion Carrier

Author(s) -

Somayeh Tarahomi,

Gholam Hossein Rounaghi,

Hossein Eshghi,

Leili Daneshvar,

Mahmoud Chamsaz

Publication year - 2016

Publication title -

journal of the brazilian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.337

H-Index - 70

eISSN - 1678-4790

pISSN - 0103-5053

DOI - 10.5935/0103-5053.20160146

Subject(s) - membrane , ion , chemistry , ion transporter , inorganic chemistry , chemical engineering , materials science , organic chemistry , biochemistry , engineering

Facilitated transport of silver(I) cation across a bulk liquid membrane by two synthesized ligands, bis-β-enamino ester (BBEE) and bis(benzoic acid) trioxaheptane (BBAT), as carriers dissolved in dichloromethane has been investigated. BBEE was used as a specific ion carrier for the transport of silver(I) ion. The influence of experimental parameters affecting the transport efficiency of silver(I) ion have been studied. In the presence of thiosulfate as a suitable metal ion acceptor in the receiving phase and picrate ion as ion pairing agent in the source phase, the amount of silver(I) ion transported across the liquid membrane after 120 min was found to be 97%. Tolerance to the presence of different ions was investigated and it was found that silver(I) cation transport was not affected even in the presence of 10-fold concentration of these metal cations in solution. This system was applied for the recovery of silver(I) cation from silver plating and photographic waste solution.

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