Membrane and Water Treatment

  • 제6권1호
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  • Pages.27-42
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  • 2015
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  • 2005-8624(pISSN)
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  • 2092-7037(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Preparation of bi-polar membranes and their application to hypochlorite production

  • Kim, Jung Sik (Department of Industrial Engineering Chemistry, Chungbuk National University) ;
  • Cho, Eun Hye (Department of Chemical Engineering, Hannam University) ;
  • Rhim, Ji Won (Department of Chemical Engineering, Hannam University) ;
  • Park, Chan Jong (Department of Chemical Engineering, Hannam University) ;
  • Park, Soo-Gil (Department of Industrial Engineering Chemistry, Chungbuk National University)
  • 투고 : 2014.06.04
  • 심사 : 2014.12.05
  • 발행 : 2015.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, poly (phenylene oxide) (PPO) and poysulfone (PSf) were sulfonated and aminated respectively. Both sulfonated poly (phenylene oxide) (SPPO) and aminated polysulfone (APSf) were characterized via the measurement of FT-IR, swelling degree, ion exchange capacity (IEC), and ion conductivity. Then the surfaces of these membranes were modified by surface fluorination using 2000 ppm $F_2$ gas against $N_2$ gas for 1 h at room temperature. The surface fluorinated SPPO and APSf membranes were characterized again to determine any differences between the pristine and fluorinated membranes. In total, 3 types of bi-polar membranes were prepared by varying the IEC of the APSf and having a fixed value for the IEC of the SPPO. The hypochlorite concentration generated by using the surface fluorinated membranes was dependent on the IEC of the APSf and ranged from 683 to 826 ppm, while there was a considerable improvement in the durability of the surface fluorinated membranes as they remained intact even after operating for 4 h.

키워드

과제정보

연구 과제 주관 기관 : National Research Foundation of Korea (NRF)

참고문헌

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피인용 문헌

  1. Application of poly(vinyl alcohol) and polysulfone based ionic exchange polymers to membrane capacitive deionization for the removal of mono- and divalent salts vol.157, 2016, https://doi.org/10.1016/j.seppur.2015.11.011
  2. Study on Acid/Base Formation by Using Sulfonated Polyether Ether Ketone/Aminated Polysulfone Bipolar Membranes in Water Splitting Electrodialysis vol.55, pp.7, 2016, https://doi.org/10.1021/acs.iecr.5b03137
  3. Design shape of CDI cell applied with APSf and SPEEK and performance in MCDI vol.25, pp.7, 2017, https://doi.org/10.1007/s13233-017-5064-2
  4. Comparison of CDI and MCDI applied with sulfonated and aminated polysulfone polymers vol.7, pp.1, 2016, https://doi.org/10.12989/mwt.2016.7.1.039
  5. 직접 불소화에 의해 표면 개질된 SPEEK/APSf, SPEEK/APEI 바이폴라막을 이용한 차아염소산나트륨 생성 vol.25, pp.5, 2015, https://doi.org/10.14579/membrane_journal.2015.25.5.447