Separation of silver(I) and copper(II) by polymer inclusion membranes with aza[18]crown-6 derivatives as ion carriers

Kołodziejska, Marta; Kozłowska, Jolanta; Kozłowski, Cezary A.

doi:10.5004/dwt.2017.11436

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…PIMs have effectively been employed in separation science, e.g., for the hydrometallurgical separation of Co(II) from Mn(II) [ 27 ], the transport of Zn(II), Fe(II), and Fe(III) ions from chloride aqueous solutions [ 28 ], the separation of Ag(I) from Cu(II) [ 29 ], the separation of In(III) from Cu(II) in hydrochloric acid medium [ 30 ], the selective separation of scandium (Sc) from other rare earth metals (Y, La, Nd, Eu, Dy) [ 25 ], the transport of Pd(II) over Pt(IV), Mn(II), Ni(II), and Fe(III) [ 31 ], the separation of Pd(II) and Rh(III) from chloride solutions [ 32 ], the possibility of cadmium(II) and lead(II) ion separation [ 33 ], and the selective removal of cobalt(II) from aqueous chloride solutions containing nickel(II) and lithium(I) [ 34 ], among many other applications.…”

Section: Introductionmentioning

confidence: 99%

On the Use of Polymer Inclusion Membranes for the Selective Separation of Pb(II), Cd(II), and Zn(II) from Seawater

Macías

Miguel

2023

Membranes

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The synthesis and optimization of polymeric inclusion membranes (PIMs) for the transport of Cd(II) and Pb(II) and their separation from Zn(II) in aqueous saline media are presented. The effects of NaCl concentrations, pH, matrix nature, and metal ion concentrations in the feed phase are additionally analyzed. Experimental design strategies were used for the optimization of PIM composition and evaluating competitive transport. Synthetic seawater with 35% salinity, commercial seawater collected from the Gulf of California (Panakos®), and seawater collected from the beach of Tecolutla, Veracruz, Mexico, were employed. The results show an excellent separation behavior in a three-compartment setup using two different PIMs (Aliquat 336 and D2EHPA as carriers, respectively), with the feed phase placed in the central compartment and two different stripping phases placed on both sides: one solution with 0.1 mol/dm3 HCl + 0.1 mol/dm3 NaCl and the other with 0.1 mol/dm3 HNO3. The selective separation of Pb(II), Cd(II), and Zn(II) from seawater shows separation factors whose values depend on the composition of the seawater media (metal ion concentrations and matrix composition). The PIM system allows S(Cd) and S(Pb)~1000 and 10 < S(Zn) < 1000, depending on the nature of the sample. However, values as high as 10,000 were observed in some experiments, allowing an adequate separation of the metal ions. Analyses of the separation factors in the different compartments in terms of the pertraction mechanism of the metal ions, PIMs stabilities, and preconcentration characteristics of the system are performed as well. A satisfactory preconcentration of the metal ions was observed after each recycling cycle.

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Section: Introductionmentioning

confidence: 99%

On the Use of Polymer Inclusion Membranes for the Selective Separation of Pb(II), Cd(II), and Zn(II) from Seawater

Macías

Miguel

2023

Membranes

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“…The solutions obtained as a result of leaching are subjected to separation processes, which may include separation with liquid membranes [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ]. Various carriers are used in membrane processes, e.g., thiourea derivatives [ 26 , 27 ], phosphoric acid derivatives [ 28 , 29 ], calixpyrroles [ 30 , 31 ], crown ethers [ 32 , 33 , 34 , 35 , 36 ] or calixarene [ 37 ]. Currently, polymer membranes are the most popular for membrane processes, which are increasingly used in the separation of various metal ions [ 38 , 39 , 40 ].…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, attempts were made to leach waste with thiourea and its derivatives [25]. The solutions obtained as a result of leaching are subjected to separation processes, which may include separation with liquid membranes [26][27][28][29][30][31][32][33][34]. Various carriers are used in membrane processes, e.g., thiourea derivatives [26,27], phosphoric acid derivatives [28,29], calixpyrroles [30,31], crown ethers [32][33][34][35][36] or calixarene [37].…”

Section: Introductionmentioning

confidence: 99%

Application of Polymer Inclusion Membranes Doped with Alkylimidazole to Separation of Silver and Zinc Ions from Model Solutions and after Battery Leaching

2020

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New materials, such as polymer inclusion membranes, can be used for water and wastewater treatment. In this paper, the selective transport of silver(I) and zinc(II) ions from nitrate solutions through the polymer inclusion membranes (PIMs), which consist of cellulose triacetate as a polymeric support, o-nitrophenyl pentyl ether as a plasticizer, and either 1-hexylimidazole (1) or 1-hexyl-2-methylimidazole (2) as an ion carrier, is studied. Both Zn(II) and Ag(I) model solutions (CM = 0.001 M, pH = 6.5), as well as the solutions after the leaching of a spent battery with a silver–zinc cell (silver-oxide battery), are tested. The results show that Zn(II) ions are effectively transported through PIMs containing either carrier, whereas Ag(I) is more easily transported through PIMs doped with (1). In the case of the leaching solution after 24 h transport, the recovery coefficients of Ag(I) and Zn(II) for PIMs doped with (1) are 86% and 90%, respectively, and for PIMs doped with (2), 47% and 94%, respectively. The influence of basicity and structure of carrier molecules on transport kinetics is discussed as well. PIMs are characterized by using an atomic force microscopy (AFM) technique.

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“…Different techniques were used for the removal of silver ions from aqueous solutions, such as solvent extraction [ 6 , 7 , 8 ], adsorption [ 9 , 10 ], emulsion liquid membrane (ELM) [ 11 , 12 ], bulk liquid membrane (BLM) [ 13 , 14 ], supported liquid membrane (SLM) [ 15 , 16 , 17 ], and polymer inclusion membrane (PIM) [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

“…The selectivity of this investigated membrane system is determined by the percolation process of membrane components. Kolodziejska et al [ 19 ] found that polymer inclusion membranes containing N-(diethylthiophosphoryl)aza[18]crown-6 and N-(diethyloxophosphoryl)-aza[18]crown-6 as carriers, act efficiently with silver ions. When the metal ions are inserted deeper in the ether cavity, the selectivity coefficient of Ag(I)/Cu(II) is higher.…”

Section: Introductionmentioning

confidence: 99%

Selective Transport of Ag(I) through a Polymer Inclusion Membrane Containing a Calix[4]pyrrole Derivative from Nitrate Aqueous Solutions

Nowik-Zając

Zawierucha

Kozłowski

2020

IJMS

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Cellulose-triacetate-based polymer inclusion membranes (PIMs) with different concentrations of a calixpyrrole ester derivative as the membrane carrier were studied to determine their ability to transport Ag(I) from aqueous nitrate solutions. The effects of the concentrations of ion carriers and metal ions, the pH of the source aqueous phase, and stripping agents on the effective transport of Ag(I) were assessed. All studied parameters were found to be important factors for the transport of Ag(I) metal ions. The initial fluxes were determined at different temperatures. The prepared membranes were found to be highly permeable. The selectivity of silver transport from an aqueous solution containing Ag(I), Cu(II), Pb(II), Cd(II), Ni(II), Zn(II), and Co(II) ions was also investigated.

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Separation of silver(I) and copper(II) by polymer inclusion membranes with aza[18]crown-6 derivatives as ion carriers

Cited by 8 publications

References 8 publications

On the Use of Polymer Inclusion Membranes for the Selective Separation of Pb(II), Cd(II), and Zn(II) from Seawater

On the Use of Polymer Inclusion Membranes for the Selective Separation of Pb(II), Cd(II), and Zn(II) from Seawater

Application of Polymer Inclusion Membranes Doped with Alkylimidazole to Separation of Silver and Zinc Ions from Model Solutions and after Battery Leaching

Selective Transport of Ag(I) through a Polymer Inclusion Membrane Containing a Calix[4]pyrrole Derivative from Nitrate Aqueous Solutions

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