Fabrication and Electrochemical Characterization of Polyvinyl Chloride-Co- Polyethylene Glycol Based Heterogeneous Cation Exchange Membranes for the Application in Electrodialysis Process

Document Type : Research Article

Authors

Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, I.R. IRAN

Abstract

In this research, the effect of blending polyvinylchloride/polyethylene glycol on Physico-chemical and separation characteristics of heterogeneous cation exchange membranes was studied. Heterogeneous cation exchange membranes were prepared by using the phase inversion method through the solution casting technique. Obtained results showed that membrane water content and surface hydrophilicity were enhanced by an increase of PEG ratio in the membrane matrix. The membrane ion exchange capacity, charge density, membrane potential, transport number, and selectivity initially were improved by the use of PEG concentration up to 4 %wt in membrane matrix and then began to decrease by more PEG ratio from 4 to 16 %wt. The membrane ionic permeability and flux were enhanced initially by an increase of PEG content ratio up to 2 %wt in membrane matrix and then showed decreasing trend by more PEG loading ratio from 2 to 8 %wt. The ionic permeability and flux were enhanced again by more increase of PEG concentration from 8 to 16 %wt. The membrane areal electrical resistance was decreased sharply by the use of PEG in the membrane matrix. The membrane transport number and selectivity were also increased by an increase in electrolyte concentration. Membrane showed higher transport number and selectivity at neutral pH compared to other pH values. Results show that the modified membrane in this study is comparable with that of commercial membranes.

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Main Subjects


[1] Tanaka Y. “Ion Exchange Membranes: Fundamentals and Applications”, 2nd ed., Membrane Science and Technology Series Elsevier, Netherlands (2015).
[2] Nemati M., Hosseini S. M., Shabanian M., Novel Electrodialysis Cation Exchange 2-acrylamido-2-methylpropane Membrane Prepared by Sulfonic Acid; Heavy Metal Ions Removal, J. Hazard. Mater., 337: 90-104 (2017).
[3] Hosseini S.M., Jashni E., Habibi M., Van der Bruggen B., Fabrication of Novel Electrodialysis Heterogeneous Ion Exchange Membranes by Incorporating PANI/GO Functionalized Composite Nanoplates, IONICS., 24:1789-1801 (2018).
[4] Dlugolecki P, Anet B, Metz S.J, Nijmeijer K, Wessling M., Transport Limitations in Ion Exchange Membranes at Low Salt Concentrations, J. Membr. Sci., 346:163-171 (2010).
[5] Nagarale R.K, Shahi V.K, Schubert R, Rangarajan R, Mehnert R., Development of Urethane Acrylate Composite Ion-Exchange Membranes and their Electrochemical CharacterizationJ. Colloid Interface Sci., 270: 446-454 (2004).
[6] Hosseini S.M., Jashni E., Habibi M., Nemati M., Van der Bruggen B., Evaluating the Ion Transport Characteristics of Novel Graphene Oxide Nanoplates Entrapped Mixed Matrix Cation Exchange Membranes in Water Deionization, J. Membr. Sci., 541:641-652 (2017).
[7] Kariduraganavar M.Y., Nagarale R.K., Kittur A.A., Kulkarni S. S., Ion-Exchange Membranes: Preparative Methods for Electro-Dialysis and Fuel Cell Application, Desalination; 197: 225-46 (2006).
[9] Xu T., Ion Exchange Membrane: State of their Development and Perspective, J. Membr. Sci., 263:1-29 (2005).
[10] Nagarale R.K, Gohil G.S, Shahi V.K, Rangarajan R., Preparation and Electrochemical Characterization of Cation-Exchange Membranes with Different Functional Groups, Colloids Surf., 251: 133-140 (2004).
[11] Hosseini S.M., Madaeni S.S., Khodabakhshi A.R., Preparation and Characterization of Heterogeneous Cation Exchange Membranes Based on S-Poly Vinyl Chloride and Polycarbonate, Sep. Sci. Technol., 46:794-808 (2011).
[12] Hosseini S.M., Madaeni S.S., Khodabakhshi A.R., Preparation and Characterization of ABS/HIPS Heterogeneous Cation Exchange Membranes with Various Blend Ratios of Polymer Binder, J. Membr. Sci., 351: 178–188 (2010).
[13] Hosseini S.M., Madaeni S.S., Khodabakhshi A.R., Preparation and Surface Modification of PVC/SBR Heterogeneous Cation Exchange Membrane with Silver Nanoparticles by Plasma Treatment, J. Membr. Sci., 365: 438-446 (2010).
[14] Nemati M., Hosseini S.M., Bagheripour E., Madaeni S.S., Surface Modification of Cation Exchange Membranes by Graft Polymerization of PAA-co-PANI/MWCNTs Nanoparticles, Korean J. Chem. Eng., 34:1813-1821 (2017).
[17] S. Wiks E. “Industrial Polymers Handbook: Products, Processes, Application”, WILEY-VCH Press, Germany, (2001).
[18] Sadeghi M., Pourafshari Chenar M., Rahimian M., Moradi S., Saeedi Dehaghani A. H., Gas Permeation Properties of Polyvinylchloride/Polyethylene glycol Blend Membranes, J. Appl. Polym. Sci., 110: 1093-1098 (2008).
[19] Ebadi A., Sanaeepur H., Moghadassi A.R., Kargari A., Ghanbari D., Sheikhi Mehrabadi Z., Modification of ABS Membrane by PEG for Capturing Carbon Dioxide from CO2/N2 Streams, Sep. Sci. Technol., 45: 1385-1394 (2010).
[20] Tavakolmoghadam M., Rekabdar F., Hemmati M., Mohammadi T., Poly (Vinylidene Fluoride) Membrane Preparation and Characterization: Effects of Mixed Solvents and PEG Molecular Weight, J. Pet. Sci. Technol., 6(2): 11-21 (2016).
[22] Nagarale R.K., Shahi V.K., Thampy S.K., Rangarajan R., Studies on Electrochemical Characterization of Polycarbonate and Polysulfone Based Heterogeneous Cation-Exchange Membranes, React. Funct. Polym., 61:131-8 (2004).
[23] Gohil G.S., Binsu V.V., Shahi V.K., Preparation and Characterization of Mono-Valent Ion Selective Polypyrrole Composite Ion-Exchange Membranes, J. Membr. Sci., 280:210-218 (2006).
[24] Lide D.R. “Handbook of Chemistry and Physics”, 99th ed., CRC Press; (2018).
[25] Nagarale R.K, Shahi V.K, Rangarajan R., Preparation of PVA-Silica Hybrid Heterogeneous Anion-Exchange Membranes by Sol-Gel Method and their Characterization, J. Membr. Sci., 248: 37-44 (2005).
[26] Nemati M., Hosseini S.M., Madaeni S.S., Koranian P., Jeddi F., Investigation on the Effect of Polymer Binder Sulfonation on Electrochemical Properties of Nanocomposite Heterogeneous Cation Exchange Membranes, Iran. J. Chem. Chem. Eng. (IJCCE), 35(1): 99-110 (2016).
[27] Nagarale R.K, Gohil G.S, Shahi V.K., Recent Developments on Ion-Exchange Membranes and Electro-Membrane Processes, Adv. Colloid Interface Sci., 119:97-130 (2006).
[28] Długolecki P., Nymeijer K., Metz S., Wessling M., Current Status of Ion Exchange Membranes for Power Generation from Salinity Gradients, J. Membr. Sci., 319: 214-222 (2008).