Calixresorcin[4]arene-Mediated Transport of Pb(II) Ions through Polymer Inclusion Membrane
A facilitated transport of Pb(II) through polymer inclusion membrane (PIM) containing 1,8,15,22-tetra(1-heptyl)-calixresorcin[4]arene and its tetra- and octasubstituted derivatives containing phosphoryl, thiophosphoryl or ester groups as an ion carrier was investigated. The efficiency of Pb(II) remo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/11/4/285 |
| _version_ | 1797537795875536896 |
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| author | Joanna Konczyk Wojciech Ciesielski |
| author_facet | Joanna Konczyk Wojciech Ciesielski |
| author_sort | Joanna Konczyk |
| collection | DOAJ |
| description | A facilitated transport of Pb(II) through polymer inclusion membrane (PIM) containing 1,8,15,22-tetra(1-heptyl)-calixresorcin[4]arene and its tetra- and octasubstituted derivatives containing phosphoryl, thiophosphoryl or ester groups as an ion carrier was investigated. The efficiency of Pb(II) removal from aqueous nitrate solutions was considered as a function of the composition of membrane (effect of polymer, plasticizer, and carrier), feed (effect of initial metal concentration and presence of other metal ions) and stripping phases, and temperature of the process conducting. Two kinetic models were applied for the transport description. The highest Pb(II) ions removal efficiency was obtained for the membrane with tetrathiophosphorylated heptyl-calixresorcin[4]arene as an ion carrier. The activation energy value, found from Eyring plot to be equal 38.7 ± 1.3 kJ/mol, suggests that the transport process is controllable both by diffusion and chemical reaction. The competitive transport of Pb(II) over Zn(II), Cd(II), and Cr(III) ions across PIMs under the optimal conditions was also performed. It was found that the Cr(III) ions’ presence in the feed phase disturb effective re-extraction of Pb(II) ions from membrane to stripping phase. Better stability of PIM-type than SLM-type membrane was found. |
| first_indexed | 2024-03-10T12:21:20Z |
| format | Article |
| id | doaj.art-87ef6da37f424dce9472aa5d18aac21e |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T12:21:20Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-87ef6da37f424dce9472aa5d18aac21e2023-11-21T15:26:59ZengMDPI AGMembranes2077-03752021-04-0111428510.3390/membranes11040285Calixresorcin[4]arene-Mediated Transport of Pb(II) Ions through Polymer Inclusion MembraneJoanna Konczyk0Wojciech Ciesielski1Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Str., 42-200 Czestochowa, PolandFaculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Str., 42-200 Czestochowa, PolandA facilitated transport of Pb(II) through polymer inclusion membrane (PIM) containing 1,8,15,22-tetra(1-heptyl)-calixresorcin[4]arene and its tetra- and octasubstituted derivatives containing phosphoryl, thiophosphoryl or ester groups as an ion carrier was investigated. The efficiency of Pb(II) removal from aqueous nitrate solutions was considered as a function of the composition of membrane (effect of polymer, plasticizer, and carrier), feed (effect of initial metal concentration and presence of other metal ions) and stripping phases, and temperature of the process conducting. Two kinetic models were applied for the transport description. The highest Pb(II) ions removal efficiency was obtained for the membrane with tetrathiophosphorylated heptyl-calixresorcin[4]arene as an ion carrier. The activation energy value, found from Eyring plot to be equal 38.7 ± 1.3 kJ/mol, suggests that the transport process is controllable both by diffusion and chemical reaction. The competitive transport of Pb(II) over Zn(II), Cd(II), and Cr(III) ions across PIMs under the optimal conditions was also performed. It was found that the Cr(III) ions’ presence in the feed phase disturb effective re-extraction of Pb(II) ions from membrane to stripping phase. Better stability of PIM-type than SLM-type membrane was found.https://www.mdpi.com/2077-0375/11/4/285polymer inclusion membranecalixresorcin[4]areneleadheavy metal |
| spellingShingle | Joanna Konczyk Wojciech Ciesielski Calixresorcin[4]arene-Mediated Transport of Pb(II) Ions through Polymer Inclusion Membrane Membranes polymer inclusion membrane calixresorcin[4]arene lead heavy metal |
| title | Calixresorcin[4]arene-Mediated Transport of Pb(II) Ions through Polymer Inclusion Membrane |
| title_full | Calixresorcin[4]arene-Mediated Transport of Pb(II) Ions through Polymer Inclusion Membrane |
| title_fullStr | Calixresorcin[4]arene-Mediated Transport of Pb(II) Ions through Polymer Inclusion Membrane |
| title_full_unstemmed | Calixresorcin[4]arene-Mediated Transport of Pb(II) Ions through Polymer Inclusion Membrane |
| title_short | Calixresorcin[4]arene-Mediated Transport of Pb(II) Ions through Polymer Inclusion Membrane |
| title_sort | calixresorcin 4 arene mediated transport of pb ii ions through polymer inclusion membrane |
| topic | polymer inclusion membrane calixresorcin[4]arene lead heavy metal |
| url | https://www.mdpi.com/2077-0375/11/4/285 |
| work_keys_str_mv | AT joannakonczyk calixresorcin4arenemediatedtransportofpbiiionsthroughpolymerinclusionmembrane AT wojciechciesielski calixresorcin4arenemediatedtransportofpbiiionsthroughpolymerinclusionmembrane |