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

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.

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acceptedVersion

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

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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