Cation Exchange Membranes Coated with Polyethyleneimine and Crown Ether to Improve Monovalent Cation Electrodialytic Selectivity
Developing monovalent cation permselective membranes (MCPMs) with high-efficient permselectivity is the core concern in specific industrial applications. In this work, we have fabricated a series of novel cation exchange membranes (CEMs) based on sulfonated polysulfone (SPSF) surface modification by...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/11/5/351 |
| _version_ | 1797534712806244352 |
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| author | Shanshan Yang Shuaijun Yu Lu Yu Yuanwei Liu Junbin Liao Jiangnan Shen Congjie Gao |
| author_facet | Shanshan Yang Shuaijun Yu Lu Yu Yuanwei Liu Junbin Liao Jiangnan Shen Congjie Gao |
| author_sort | Shanshan Yang |
| collection | DOAJ |
| description | Developing monovalent cation permselective membranes (MCPMs) with high-efficient permselectivity is the core concern in specific industrial applications. In this work, we have fabricated a series of novel cation exchange membranes (CEMs) based on sulfonated polysulfone (SPSF) surface modification by polyethyleneimine (PEI) and 4′-aminobenzo-12-crown-4 (12C4) codeposited with dopamine (DA) successively, which was followed by the cross-linking of glutaraldehyde (GA). The as-prepared membranes before and after modification were systematically characterized with regard to their structures as well as their physicochemical and electrochemical properties. Particularly, the codeposition sequence of modified ingredients was investigated on galvanostatic permselectivity to cations. The modified membrane (M-12C4-0.50-PEI) exhibits significantly prominent selectivity to Li<sup>+</sup> ions (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi mathvariant="normal">P</mi><mrow><msup><mrow><mi>Mg</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow><mrow><msup><mrow><mi>Li</mi></mrow><mo>+</mo></msup></mrow></msubsup></mrow></semantics></math></inline-formula> = 5.23) and K<sup>+</sup> ions (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi mathvariant="normal">P</mi><mrow><msup><mrow><mi>Mg</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow><mrow><msup><mi mathvariant="normal">K</mi><mo>+</mo></msup></mrow></msubsup></mrow></semantics></math></inline-formula> = 13.56) in Li<sup>+</sup>/Mg<sup>2+</sup> and K<sup>+</sup>/Mg<sup>2+</sup> systems in electrodialysis (ED), which is far superior to the pristine membrane (M-0, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi mathvariant="normal">P</mi><mrow><msup><mrow><mi>Mg</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow><mrow><msup><mrow><mi>Li</mi></mrow><mo>+</mo></msup></mrow></msubsup></mrow></semantics></math></inline-formula> = 0.46, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi mathvariant="normal">P</mi><mrow><msup><mrow><mi>Mg</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow><mrow><msup><mi mathvariant="normal">K</mi><mo>+</mo></msup></mrow></msubsup></mrow></semantics></math></inline-formula> = 1.23) at a constant current density of 5.0 mA·cm<sup>−2</sup>. It possibly arises from the synergistic effects of electrostatic repulsion (positively charged PEI), pore-size sieving (distribution of modified ingredients), and specific interaction effect (12C4 ~Li<sup>+</sup>). This facile strategy may provide new insights into developing selective CEMs in the separation of specific cations by ED. |
| first_indexed | 2024-03-10T11:33:22Z |
| format | Article |
| id | doaj.art-13fc0f90151943a3931352565e13ec14 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T11:33:22Z |
| publishDate | 2021-05-01 |
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| series | Membranes |
| spelling | doaj.art-13fc0f90151943a3931352565e13ec142023-11-21T19:02:03ZengMDPI AGMembranes2077-03752021-05-0111535110.3390/membranes11050351Cation Exchange Membranes Coated with Polyethyleneimine and Crown Ether to Improve Monovalent Cation Electrodialytic SelectivityShanshan Yang0Shuaijun Yu1Lu Yu2Yuanwei Liu3Junbin Liao4Jiangnan Shen5Congjie Gao6College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaDepartment of Chemical Engineering and Safety, Binzhou University, Binzhou 256600, ChinaCollege of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCenter for Membrane and Water Science & Technology, Zhejiang University of Technology, Hangzhou 310014, ChinaDeveloping monovalent cation permselective membranes (MCPMs) with high-efficient permselectivity is the core concern in specific industrial applications. In this work, we have fabricated a series of novel cation exchange membranes (CEMs) based on sulfonated polysulfone (SPSF) surface modification by polyethyleneimine (PEI) and 4′-aminobenzo-12-crown-4 (12C4) codeposited with dopamine (DA) successively, which was followed by the cross-linking of glutaraldehyde (GA). The as-prepared membranes before and after modification were systematically characterized with regard to their structures as well as their physicochemical and electrochemical properties. Particularly, the codeposition sequence of modified ingredients was investigated on galvanostatic permselectivity to cations. The modified membrane (M-12C4-0.50-PEI) exhibits significantly prominent selectivity to Li<sup>+</sup> ions (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi mathvariant="normal">P</mi><mrow><msup><mrow><mi>Mg</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow><mrow><msup><mrow><mi>Li</mi></mrow><mo>+</mo></msup></mrow></msubsup></mrow></semantics></math></inline-formula> = 5.23) and K<sup>+</sup> ions (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi mathvariant="normal">P</mi><mrow><msup><mrow><mi>Mg</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow><mrow><msup><mi mathvariant="normal">K</mi><mo>+</mo></msup></mrow></msubsup></mrow></semantics></math></inline-formula> = 13.56) in Li<sup>+</sup>/Mg<sup>2+</sup> and K<sup>+</sup>/Mg<sup>2+</sup> systems in electrodialysis (ED), which is far superior to the pristine membrane (M-0, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi mathvariant="normal">P</mi><mrow><msup><mrow><mi>Mg</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow><mrow><msup><mrow><mi>Li</mi></mrow><mo>+</mo></msup></mrow></msubsup></mrow></semantics></math></inline-formula> = 0.46, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi mathvariant="normal">P</mi><mrow><msup><mrow><mi>Mg</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow><mrow><msup><mi mathvariant="normal">K</mi><mo>+</mo></msup></mrow></msubsup></mrow></semantics></math></inline-formula> = 1.23) at a constant current density of 5.0 mA·cm<sup>−2</sup>. It possibly arises from the synergistic effects of electrostatic repulsion (positively charged PEI), pore-size sieving (distribution of modified ingredients), and specific interaction effect (12C4 ~Li<sup>+</sup>). This facile strategy may provide new insights into developing selective CEMs in the separation of specific cations by ED.https://www.mdpi.com/2077-0375/11/5/351electrodialysismonovalent cation permselectivitycodepositionpolyethyleneimine4′-aminobenzo-12-crown-4 |
| spellingShingle | Shanshan Yang Shuaijun Yu Lu Yu Yuanwei Liu Junbin Liao Jiangnan Shen Congjie Gao Cation Exchange Membranes Coated with Polyethyleneimine and Crown Ether to Improve Monovalent Cation Electrodialytic Selectivity Membranes electrodialysis monovalent cation permselectivity codeposition polyethyleneimine 4′-aminobenzo-12-crown-4 |
| title | Cation Exchange Membranes Coated with Polyethyleneimine and Crown Ether to Improve Monovalent Cation Electrodialytic Selectivity |
| title_full | Cation Exchange Membranes Coated with Polyethyleneimine and Crown Ether to Improve Monovalent Cation Electrodialytic Selectivity |
| title_fullStr | Cation Exchange Membranes Coated with Polyethyleneimine and Crown Ether to Improve Monovalent Cation Electrodialytic Selectivity |
| title_full_unstemmed | Cation Exchange Membranes Coated with Polyethyleneimine and Crown Ether to Improve Monovalent Cation Electrodialytic Selectivity |
| title_short | Cation Exchange Membranes Coated with Polyethyleneimine and Crown Ether to Improve Monovalent Cation Electrodialytic Selectivity |
| title_sort | cation exchange membranes coated with polyethyleneimine and crown ether to improve monovalent cation electrodialytic selectivity |
| topic | electrodialysis monovalent cation permselectivity codeposition polyethyleneimine 4′-aminobenzo-12-crown-4 |
| url | https://www.mdpi.com/2077-0375/11/5/351 |
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