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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received February 18, 2020
Accepted June 12, 2020

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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

So Young Kim¹ Won Min Keum¹ Sang Wook Kang^{1 2†}

¹Department of Chemistry, Sangmyung University, Seoul 03016, Korea ²Department of Chemistry and Energy Engineering, Sangmyung University, Seoul 03016, Korea

swkang@smu.ac.kr

Korean Journal of Chemical Engineering, November 2020, 37(11), 2064-2067(4), 10.1007/s11814-020-0613-3

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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.

Keywords

Polysulfone NMP Water Pressure Dipping Method Pore Size

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