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Structural control of polysulfone membrane by using dimethylacetamide and water-pressure for water treatment

  • Separation Technology, Thermodynamics
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Abstract

A method for separating sodium alginate through polysulfone (PSf) support by dimethyl acetamide (DMAc) and hydraulic treatment was studied. After exposing the PSf support to DMAc solvent, water pressure was applied onto the polymer support. As a result, the sponge-type structures were connected to each other and the porosity of the modified PSf increased. In addition, the support pressurized for 3 minutes at 8 bar had the highest value of 133 L/m2h and removal rate of 95.0% for sodium alginate filtration test. When the PSf support was immersed in an organic solvent, the interaction between the chains of the PSf was weakened, while when water pressure was applied, pores were generated. These results were confirmed by SEM, FT-IR and porosimeter data.

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Acknowledgements

This work was supported by a 2018 Sangmyung University research fund.

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Authors and Affiliations

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

    Jeonghyun Hwang, Hwa Jin Lee & Sang Wook Kang

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

    Sang Wook Kang

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  1. Jeonghyun Hwang
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  2. Hwa Jin Lee
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  3. Sang Wook Kang
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Correspondence to Sang Wook Kang.

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Hwang, J., Lee, H.J. & Kang, S.W. Structural control of polysulfone membrane by using dimethylacetamide and water-pressure for water treatment. Korean J. Chem. Eng. 37, 1585–1588 (2020). https://doi.org/10.1007/s11814-020-0558-6

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  • DOI: https://doi.org/10.1007/s11814-020-0558-6

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