The use of the steric effect of the carrier molecule in the polymer inclusion membranes for the separation of cobalt(II), nickel(II), copper(II), and zinc(II) ions

• Autorzy: Radzyminska-Lenarcik E. , Ulewicz M.

Identyfikatory

DOI

10.1515/pjct-2015-0029

• Języki publikacji: EN

Abstrakty

EN

In this study, palladium-modified nickel foam substrate was applied to examine ethanol oxidation reaction (EOR) in 0.1 The transport of cobalt(II), nickel(II), copper(II), and zinc(II) ions from chloride solutions across polymer inclusion membranes (PIMs), which 1-heptylimidazole (1̲) or 1-heptyl-2-methylimidazole (2̲) or 1-heptyl-4-methylimidazole (3̲) as the ion carrier was reported. The steric effect for carriers 2̲&enspand 3̲&enspdecreases the transport of all ions except Cu(II). The initial fluxes of metal ions transport across PIMs with the 1̲- 2̲&enspdecrease in the sequence: Cu(II) > Zn(II) > Co(II) > Ni(II), whereas for 3 they were Cu(II) > Zn(II) > Ni(II) > Co(II). The highest recovery values were obtained for Cu(II), this being 99 and 85% for carrier 1̲&enspand 2̲, respectively. In both membranes the degree of deposition of the Zn(II) ions was comparable. Zn(II), Co(II) and Cd(II) ions, which form complexes with coordination numbers 4 and 6, are more easily recovered with the use of carriers 2̲&enspand 3̲. Ni(II) ions, which form complexes with coordination number 6 only, practically remain in the feeding phase. PIMs with alkylimidazoles were characterized by non-contact atomic force microscopy.

Słowa kluczowe

EN

polymer inclusion membrane; separation ions; steric effect; copper(II); cobalt(II); nickel(II); cadmium(II); zinc(II); alkylimidazole

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2015
• Tom: Vol. 17, nr 2
• Strony: 51--56
• Opis fizyczny: Bibliogr. 38 poz., rys., tab., wz.

Twórcy

autor

Radzyminska-Lenarcik E.

• UTP University of Science and Technology, Department of Inorganic Chemistry, ul. Seminaryjna 3, 85-326 Bydgoszcz, Poland

autor

Ulewicz M.

• Czestochowa University of Technology, Department General Building Engineering and Building Physics, Faculty of Civil Engineering, ul. Akademicka 3, 42-200 Czestochowa, Poland

Bibliografia

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