<abstract xmlns="http://www.w3.org/1999/xhtml"><p>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<bold></bold>and 3̲<bold></bold>decreases the transport of all ions except Cu(II). The initial fl uxes of metal ions transport across PIMs with the 1̲<bold></bold>- 2̲<bold></bold>decrease 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<bold></bold>and 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<bold></bold>and 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.</p></abstract>

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 2̲and 3̲decreases the transport of all ions except Cu(II). The initial fl uxes of metal ions transport across PIMs with the 1̲- 2̲decrease 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 1̲and 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 2̲and 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.

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

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

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

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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),...

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

Online veröffentlicht: 09. Juni 2015

Seitenbereich: 51 - 56

DOI: https://doi.org/10.1515/pjct-2015-0029

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

© by Elzbieta Radzyminska-Lenarcik

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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

Online veröffentlicht: 09. Juni 2015

Seitenbereich: 51 - 56

DOI: https://doi.org/10.1515/pjct-2015-0029

Schlüsselwörterpolymer inclusion membrane, separation ions, steric effect, copper(II), cobalt(II), nickel(II), cadmium(II), zinc(II), alkylimidazole

© by Elzbieta Radzyminska-Lenarcik

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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