Transport and Electrochemical Characteristics of CJMCED Homogeneous Cation Exchange Membranes in Sodium Chloride, Calcium Chloride, and Sodium Sulfate Solutions
Recently developed and produced by Hefei Chemjoy Polymer Material Co. Ltd., homogeneous CJMC-3 and CJMC-5 cation-exchange membranes (CJMCED) are characterized. The membrane conductivity in NaCl, Na<sub>2</sub>SO<sub>4</sub>, and CaCl<sub>2</sub> solutions, permeab...
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MDPI AG
2020-07-01
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| author | Veronika Sarapulova Natalia Pismenskaya Dmitrii Butylskii Valentina Titorova Yaoming Wang Tongwen Xu Yang Zhang Victor Nikonenko |
| author_facet | Veronika Sarapulova Natalia Pismenskaya Dmitrii Butylskii Valentina Titorova Yaoming Wang Tongwen Xu Yang Zhang Victor Nikonenko |
| author_sort | Veronika Sarapulova |
| collection | DOAJ |
| description | Recently developed and produced by Hefei Chemjoy Polymer Material Co. Ltd., homogeneous CJMC-3 and CJMC-5 cation-exchange membranes (CJMCED) are characterized. The membrane conductivity in NaCl, Na<sub>2</sub>SO<sub>4</sub>, and CaCl<sub>2</sub> solutions, permeability in respect to the NaCl and CaCl<sub>2</sub> diffusion, transport numbers, current–voltage curves (CVC), and the difference in the pH (ΔpH) of the NaCl solution at the desalination compartment output and input are examined for these membranes in comparison with a well-studied commercial Neosepta CMX cation-exchange membrane produced by Astom Corporation, Japan. It is found that the conductivity, CVC (at relatively low voltages), and water splitting rate (characterized by ΔpH) for both CJMCED membranes are rather close to these characteristics for the CMX membrane. However, the diffusion permeability of the CJMCED membranes is significantly higher than that of the CMX membrane. This is due to the essentially more porous structure of the CJMCED membranes; the latter reduces the counterion permselectivity of these membranes, while allowing much easier transport of large ions, such as anthocyanins present in natural dyes of fruit and berry juices. The new membranes are promising for use in electrodialysis demineralization of brackish water and natural food solutions. |
| first_indexed | 2024-03-10T18:12:46Z |
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| id | doaj.art-24b33762e10b4ba99e2b9540fc9a4211 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T18:12:46Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-24b33762e10b4ba99e2b9540fc9a42112023-11-20T07:57:17ZengMDPI AGMembranes2077-03752020-07-0110816510.3390/membranes10080165Transport and Electrochemical Characteristics of CJMCED Homogeneous Cation Exchange Membranes in Sodium Chloride, Calcium Chloride, and Sodium Sulfate SolutionsVeronika Sarapulova0Natalia Pismenskaya1Dmitrii Butylskii2Valentina Titorova3Yaoming Wang4Tongwen Xu5Yang Zhang6Victor Nikonenko7Department of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, RussiaDepartment of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, RussiaDepartment of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, RussiaDepartment of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, RussiaCAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, ChinaCAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, ChinaSchool of Environmental and Safety Engineering, Qingdao University of Science and Technology, 53 Zhenzhou Road, Qingdao 266042, ChinaDepartment of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, RussiaRecently developed and produced by Hefei Chemjoy Polymer Material Co. Ltd., homogeneous CJMC-3 and CJMC-5 cation-exchange membranes (CJMCED) are characterized. The membrane conductivity in NaCl, Na<sub>2</sub>SO<sub>4</sub>, and CaCl<sub>2</sub> solutions, permeability in respect to the NaCl and CaCl<sub>2</sub> diffusion, transport numbers, current–voltage curves (CVC), and the difference in the pH (ΔpH) of the NaCl solution at the desalination compartment output and input are examined for these membranes in comparison with a well-studied commercial Neosepta CMX cation-exchange membrane produced by Astom Corporation, Japan. It is found that the conductivity, CVC (at relatively low voltages), and water splitting rate (characterized by ΔpH) for both CJMCED membranes are rather close to these characteristics for the CMX membrane. However, the diffusion permeability of the CJMCED membranes is significantly higher than that of the CMX membrane. This is due to the essentially more porous structure of the CJMCED membranes; the latter reduces the counterion permselectivity of these membranes, while allowing much easier transport of large ions, such as anthocyanins present in natural dyes of fruit and berry juices. The new membranes are promising for use in electrodialysis demineralization of brackish water and natural food solutions.https://www.mdpi.com/2077-0375/10/8/165cation exchange membraneelectric conductivitydiffusion permeabilityselectivitycurrent–voltage characteristic |
| spellingShingle | Veronika Sarapulova Natalia Pismenskaya Dmitrii Butylskii Valentina Titorova Yaoming Wang Tongwen Xu Yang Zhang Victor Nikonenko Transport and Electrochemical Characteristics of CJMCED Homogeneous Cation Exchange Membranes in Sodium Chloride, Calcium Chloride, and Sodium Sulfate Solutions Membranes cation exchange membrane electric conductivity diffusion permeability selectivity current–voltage characteristic |
| title | Transport and Electrochemical Characteristics of CJMCED Homogeneous Cation Exchange Membranes in Sodium Chloride, Calcium Chloride, and Sodium Sulfate Solutions |
| title_full | Transport and Electrochemical Characteristics of CJMCED Homogeneous Cation Exchange Membranes in Sodium Chloride, Calcium Chloride, and Sodium Sulfate Solutions |
| title_fullStr | Transport and Electrochemical Characteristics of CJMCED Homogeneous Cation Exchange Membranes in Sodium Chloride, Calcium Chloride, and Sodium Sulfate Solutions |
| title_full_unstemmed | Transport and Electrochemical Characteristics of CJMCED Homogeneous Cation Exchange Membranes in Sodium Chloride, Calcium Chloride, and Sodium Sulfate Solutions |
| title_short | Transport and Electrochemical Characteristics of CJMCED Homogeneous Cation Exchange Membranes in Sodium Chloride, Calcium Chloride, and Sodium Sulfate Solutions |
| title_sort | transport and electrochemical characteristics of cjmced homogeneous cation exchange membranes in sodium chloride calcium chloride and sodium sulfate solutions |
| topic | cation exchange membrane electric conductivity diffusion permeability selectivity current–voltage characteristic |
| url | https://www.mdpi.com/2077-0375/10/8/165 |
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