Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
권호 표지
DOI QR코드

DOI QR Code

Performance of Membrane Capacitive Deionization Process Using Polyvinylidene Fluoride Heterogeneous Ion Exchange Membranes Part I : Preparation and Characterization of Heterogeneous Ion Exchange Membranes

폴리비닐플루오라이드 불균질 이온교환막을 이용한 막 결합형 축전식탈염공정의 탈염 성능 Part I : 불균질 이온교환막의 제조 및 특성

  • Park, Cheol Oh (Department of Advanced Materials and Chemical Engineering, Hannam University) ;
  • Rhim, Ji Won (Department of Advanced Materials and Chemical Engineering, Hannam University)
  • 박철오 (한남대학교 화공신소재공학과) ;
  • 임지원 (한남대학교 화공신소재공학과)
  • Received : 2017.02.09
  • Accepted : 2017.02.24
  • Published : 2017.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, heterogeneous ion exchange membranes were prepared by mixing cation or anion exchange resins and commercial polyvinylidene fluoride (PVDF) for MCDI process. The mixing ratios of PVDF and ion exchange resins were 1 : 1, 1.4 : 1, 2 : 1, and 3 : 1. We characterized SEM, water content, ion exchange capacity, methanol permeability, and ion conductivity. In the viewpoint of membrane characterization, the blending ratio of 2 : 1 showed the best. For the blending ratio of 2 : 1, heterogeneous cation exchange membrane showed the water content 34%, ion exchange capacity 1.54 meq/g, ion conductivity 0.019 S/cm, and methanol permeability $2.28{\times}10^{-7}{\sim}8.86{\times}10^{-7}cm^2/s$ while In the case of heterogeneous anion exchange membrane, the result showed 37%, 2.18 meq/g, and 0.034 S/cm and $1.46{\times}10^{-7}{\sim}8.66{\times}10^{-7}cm^2/s$.

본 연구에서는 막 결합형 축전식 탈염공정에 적용하기 위하여 고분자 지지체 polyvinylidene fluoride (PVDF)에 상용화된 양이온 및 음이온교환수지를 배합하여 불균질 이온교환막을 제조하였다. PVDF와 이온교환수지의 배합비율을 1 : 1, 1.4 : 1, 2 : 1, 3 : 1로 달리하였으며 SEM, 함수율, 이온교환용량, 메탄올 투과도, 이온전도도를 측정하여 물리화학적 특성을 평가하였다. 특성평가 결과 모든 특성을 고려하였을 때 2 : 1의 배합비율이 가장 우수한 값을 나타내었다. 2 : 1의 배합비율로 제조한 불균질 양이온교환막의 함수율은 34%, 이온교환용량은 1.54 meq/g, 이온전도도는 0.019 S/cm, 메탄올 투과도는 $2.28{\times}10^{-7}{\sim}8.86{\times}10^{-7}cm^2/s$의 값을 나타내었으며 불균질 음이온교환막에서는 각 각 37%, 2.18 meq/g, 0.034 S/cm, $1.46{\times}10^{-7}{\sim}8.66{\times}10^{-7}cm^2/s$의 값을 나타내었다.

Keywords

References

  1. S. M. Hosseini, S. S. Madaeni, A. R. Heidari, and A. Amirimehr, "Preparation and characterization of ion-selective polyvinyl chloride based heterogeneous cation exchange membrane modified by magnetic iron-nickel oxide nanoparticles", Desalination, 284, 191 (2012). https://doi.org/10.1016/j.desal.2011.08.057
  2. R. K. Nagarale, G. S. Gohil, V. K. Shahi, and R. Rangarajan, "Preparation and electrochemical characterizations of cation-exchange membranes with different functional groups", Colloids Surfaces A Physicochem. Eng. Asp., 251, 133 (2004). https://doi.org/10.1016/j.colsurfa.2004.09.028
  3. M. Y. Kariduraganavar, R. K. Nagarale, A. A. Kittur, and S. S. Kulkarni, "Ion-exchange membranes: preparative methods for electro-dialysis and fuel cell application", Desalination, 197, 225 (2006). https://doi.org/10.1016/j.desal.2006.01.019
  4. S. M. Hosseini, A. Gholami, S. S. Madaeni, A. R. Moghadassi, and A. R. Hamidi, "Fabrication of (polyvinyl chloride/cellulose acetate) electrodialysis heterogeneous cation exchange membrane: Characterization and performance in desalination process", Desalination, 306, 51 (2012). https://doi.org/10.1016/j.desal.2012.07.028
  5. A. Elattar, A. Elmidaoui, N. Pismenskaia, C. Gavach, and G. Pourcelly, "Comparison of transport properties of monovalent anions through anion-exchange membranes", J. Membr. Sci. 143, 249 (1998). https://doi.org/10.1016/S0376-7388(98)00013-1
  6. L. Yan and J. Wang, "Development of a new polymer membrane-PVB/PVDF blended membrane", Desalination, 281, 455 (2011). https://doi.org/10.1016/j.desal.2011.08.024
  7. C. S. Lee, H. S. Shin, J. H. Jun, S. Y. Jung, and J. W. Rhim, "Recent development trends of cation exchange membrane materials", Membr. J., 12, 1 (2002).
  8. P. V. Vyas, B. G. Shah, G. S. Trivedi, P. Ray, S. K. Adhikary, and R. Rangarajan, "Characterization of heterogeneous anion-exchange membrane", J. Membr. Sci., 187, 39 (2001). https://doi.org/10.1016/S0376-7388(00)00613-X
  9. J. Schauer and L. Brozova, "Heterogeneous ion-exchange membranes based on sulfonated poly (1,4-phenylene sulfide) and linear polyethylene: preparation, oxidation stability, methanol permeability and electrochemical properties", J. Membr. Sci., 250, 151 (2005). https://doi.org/10.1016/j.memsci.2004.09.047
  10. S. M. Hosseini, S. S. Madaeni, A. Zendehnam, A.. R. Moghadassi, A. R. Khodabakhshi, and H. Sanaeepur, "Preparation and characterization of PVC based heterogeneous ion exchange membrane coated with Ag nanoparticles by (thermal-plasma) treatment assisted surface modification", J. Ind. Eng. Chem., 19, 854 (2013). https://doi.org/10.1016/j.jiec.2012.10.031
  11. J. V. Gasa, S. Boob, R. A. Weiss, and M. T. Shaw, "Proton-exchange membranes composed of slightly sulfonated poly(ether ketone ketone) and highly sulfonated crosslinked polystyrene particles", J. Membr. Sci., 269, 177 (2006). https://doi.org/10.1016/j.memsci.2005.06.033
  12. B. G. Shah, V. K. Shahi, S. K. Thampy, R. Rangarajan, and P. K. Ghosh, "Comparative studies on performance of interpolymer and heterogeneous ion-exchange membranes for water desalination by electrodialysis", Desalination, 172, 257 (2005). https://doi.org/10.1016/j.desal.2004.06.204
  13. D. Diiputell and E. Staude, "Heterogeneous modification of ultrafiltration membranes made from poly (vinylidene fluoride) and their characterization", J. Membr. Sci., 78, 45 (1993). https://doi.org/10.1016/0376-7388(93)85246-S
  14. G. J. Hwang, H. Ohya, and T. Nagai, "Ion exchange membrane based on block copolymers. Part III: preparation of cation exchange membrane", J. Membr. Sci. 156, 63 (1999).
  15. X. Li, Z. Wang, H. Lu, H. Na Chengji Zhao, and Chun Zhao, "Electrochemical properties of sulfonated PEEK used for ion exchange membranes", J. Membr. Sci. 254, 149 (2005).
  16. J. S. Kim, C. S. Kim, H. S. Shin, and J. W. Rhim, "Application of Synthesized Anion and Cation Exchange Polymers to Membrane Capacitive Deionization (MCDI)", Macromol. Res., 23, 362 (2015).
  17. C. J. Park, I. H. Kim, S. P. Kim, H. M. Lee, S. I. Cheong, H. S. Choi, and J. W. Rhim, "Preparation of poly(ethylenimine) anionic exchnage membrane impregnated in porous polyethylene membranes.", Membr. J., 21, 94 (2011).
  18. C. H. Lee, H. B. Park, Y. M. Lee, and R. D. Lee, "Importance of proton conductivity measurement in polymer electrolyte membrane for fuel cell application", Ind. Eng. Chem. Res., 44, 7617 (2005). https://doi.org/10.1021/ie0501172