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Facile pore control by NMP-dipping method with water-pressure

  • Materials (Organic, Inorganic, Electronic, Thin Films)
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Abstract

Polysulfone (PSf) membrane by treated NMP solvents with water forces was studied for pore control and separation of sodium alginate. For the preparation of modified PSf membranes, it was exposed to specific solvents and then treated by water-forces. PSf membrane treated only with NMP could show the separation of sodium alginate above 6 bar since the pore-size was not proper for water transport. However, the membrane treated with NMP and water forces showed the separation performance of sodium alginate from 2 bar. Furthermore, the highest flux (211 L/m2h) and rejection (99.3%) at 8 bar was observed. FT-IR and TGA analysis showed no chemical or physical changes after NMP and exposure to water forces. The modified pore size in polysulfone membrane was confirmed by the porosimeter.

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Acknowledgements

This work was supported by the Basic Science Research Program (2017R1D1A1B03032583) through the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT, and Future Planning.

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  1. These authors are equally contributed.

Authors and Affiliations

  1. Department of Chemistry, Sangmyung University, Seoul, 03016, Korea

    So Young Kim, Won Min Keum & Sang Wook Kang

  2. Department of Chemistry and Energy Engineering, Sangmyung University, Seoul, 03016, Korea

    Sang Wook Kang

Authors
  1. So Young Kim
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  2. Won Min Keum
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  3. Sang Wook Kang
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Correspondence to Sang Wook Kang.

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Kim, S.Y., Keum, W.M. & Kang, S.W. Facile pore control by NMP-dipping method with water-pressure. Korean J. Chem. Eng. 37, 2064–2067 (2020). https://doi.org/10.1007/s11814-020-0613-3

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  • DOI: https://doi.org/10.1007/s11814-020-0613-3

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