NDLI: Metal-ion recognition-competitive bulk liquid membrane transport of transition and post-transition metal cations using a thioether donor acyclic ionophore

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Metal-ion recognition-competitive bulk liquid membrane transport of transition and post-transition metal cations using a thioether donor acyclic ionophore

Russian Journal of Inorganic Chemistry : Volume 55, Issue 9, September 2010

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Russian Journal of Inorganic Chemistry : Volume 55, Issue 3, March 2010

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Russian Journal of Inorganic Chemistry : Volume 55, Issue 1, January 2010

Russian Journal of Inorganic Chemistry : Volume 54

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Metal-ion recognition-competitive bulk liquid membrane transport of transition and post-transition metal cations using a thioether donor acyclic ionophore

Content Provider	Springer Nature Link
Author	Rounaghi, G. H. Arbab Zavar, M. H. Fahmideh Rad, E. Sadeghian, H.
Copyright Year	2010
Abstract	The competitive bulk liquid membrane transport of Cr$^{3+}$, Co$^{2+}$, Cu$^{2+}$, Zn$^{2+}$, Cd$^{2+}$, Ag$^{+}$ and Pb$^{2+}$ metal cations with a new synthetic sulfur donor acyclic ligand (pseudo-cyclic ionophore), i.e. 1-(2-[(2-hydroxy-3-phenoxypropyl)sulfanyl]ethylsulfanyl)-3-phenoxy-2-propanol; (C$_{20}$H$_{26}$O$_{4}$S$_{2}$), was examined using some organic solvents as membranes. The membrane solvents include: chloroform (CHCl$_{3}$), 1,2-dichloroethane (1,2-DCE), dichloromethane (DCM), nitrobenzene (NB), chloroform-nitrobenzene (CHCl$_{3}$-NB) and chloroform-dichloromethane (CHCl$_{3}$-DCM) binary mixtures. The transport process was driven by a back flux of protons, maintained by the buffering the source and receiving phases with pH 5 and 3, respectively. The aqueous source phase consisted of a buffer solution (CH$_{3}$COOH/CH$_{3}$COONa) at pH = 5 and containing an equimolar mixture of these seven metal cations. The organic phase contained the acyclic ligand, as an ionophore and the receiving phase consisted of a buffer solution (HCOOH/HCOONa) at pH = 3. For these systems that displayed transport behaviour, sole selectivity for Ag$^{+}$ cation was observed under the employed experimental conditions in this investigation. The amount of Ag$^{+}$ transported follows the trend: 1,2-DCE > CHCl$_{3}$ > DCM > NB in the bulk liquid membrane studies. The transport of the metal cations in CHCl$_{3}$-NB and CHCl$_{3}$-DCM binary solvents is sensitive to the solvent composition. The influence of the stearic acid, palmitic acid and oleic acid in the membrane phase on the ion transport was also investigated.
Starting Page	1657
Ending Page	1665
Page Count	9
File Format	PDF
ISSN	00360236
Journal	Russian Journal of Inorganic Chemistry
Volume Number	55
Issue Number	10
e-ISSN	15318613
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2010-10-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Inorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Materials Science Inorganic Chemistry

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