<abstract xmlns="http://www.w3.org/1999/xhtml">The polymer membranes containing 18 wt% of cellulose acetate and different amounts of polyvinylpyrrolidone (PVP) as a cross-linker agent were used in the process of iron and copper ions removal from liquid phase. Depending on the content of PVP (changed from 1 to 4 wt.%) the membrane surfaces were characterised by different hydrophilic character and showed the dominant presence of surface oxygen-containing groups of acidic character. Irrespectively of the concentrations of solvents from which the metal ions had to be removed, the membranes showed better ability to remove Fe3+ ions than Cu2+ ones, and the membrane resistances decreased with increasing content of PVP. After the filtrations of solutions with iron ions the flux recovery ratio took rather high values; this ratio increased with increasing PVP content in the membrane.</abstract>

The polymer membranes containing 18 wt% of cellulose acetate and different amounts of polyvinylpyrrolidone (PVP) as a cross-linker agent were used in the process of iron and copper ions removal from liquid phase. Depending on the content of PVP (changed from 1 to 4 wt.%) the membrane surfaces were characterised by different hydrophilic character and showed the dominant presence of surface oxygen-containing groups of acidic character. Irrespectively of the concentrations of solvents from which the metal ions had to be removed, the membranes showed better ability to remove Fe3+ ions than Cu2+ ones, and the membrane resistances decreased with increasing content of PVP. After the filtrations of solutions with iron ions the flux recovery ratio took rather high values; this ratio increased with increasing PVP content in the membrane.

Membranes obtained on the basis of cellulose acetate and their use in removal of metal ions from liquid phase

Adam Mickiewicz University in Poznań, Faculty of Chemistry, Laboratory of Applied Chemistry, Umultowska 89b, 61-614 Poznań, Poland

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The polymer membranes containing 18 wt% of cellulose acetate and different amounts of polyvinylpyrrolidone (PVP) as a cross-linker agent were used in the...

Membranes obtained on the basis of cellulose acetate and their use in removal of metal ions from liquid phase

Online veröffentlicht: 30. Juni 2016

Seitenbereich: 104 - 110

DOI: https://doi.org/10.1515/pjct-2016-0036

Schlüsselwörter
cellulose acetate membrane, phase inversion, physical and chemical properties, Cu and Fe ions removal

© 2016 Joanna Krason et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Membranes obtained on the basis of cellulose acetate and their use in removal of metal ions from liquid phase

Online veröffentlicht: 30. Juni 2016

Seitenbereich: 104 - 110

DOI: https://doi.org/10.1515/pjct-2016-0036

Schlüsselwörtercellulose acetate membrane, phase inversion, physical and chemical properties, Cu and Fe ions removal

© 2016 Joanna Krason et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Schlüsselwörter
cellulose acetate membrane, phase inversion, physical and chemical properties, Cu and Fe ions removal