Amine‐terminated PAN membranes as anion‐adsorber materials

Anion-adsorbing membranes provide an interesting possibility to remove toxic arsenate and chromate from drinking water. A promising way to prepare anion-exchange materials is to introduce positively charged amine groups on polymers. In this study, polyacrylonitrile (PAN) ultrafiltration membranes were modified with amine functionalities on the mem-branes. The success of the modifications was demonstrated using infrared spectroscopy and zeta potential measurements. Additionally, the arsenate adsorption was analyzed. The modified membrane showed arsenate adsorption 5 times higher than the pristine PAN membrane.

Subjects

Amine modification

Anion adsorbing materials

Chromate/arsenate

PAN membranes

Water purification

DDC Class

540: Chemie

600: Technik

620: Ingenieurwissenschaften

Funding(s)

Selective Oxy-anion Removal from Drinking Waters by modified Hollow Fiber Membranes

I³-Programm

More Funding Information

This work was financially supported by Helmholtz Zentrum Hereon through the technology transfer project program. This research was also funded by the i3 project Selmo-HF of the Hamburg University of Technology. The authors also thank Prof. Dr. Volker Abetz for the scientific discussion.

Lizenz

https://creativecommons.org/licenses/by-nc-nd/4.0/

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acceptedVersion

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cite.202100037.pdf

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694.92 KB

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Amine‐terminated PAN membranes as anion‐adsorber materials