Preparation and characterization of polyamidoxime chelating resin from rubberwood fibre-g-polyacrylonitrile
Grafted rubberwood fibre was converted to polyamidoxime ion-exchange resin in order to remove heavy metal ions from aqueous solution. The cation-exchange resin existed predominantly in the syn-hydroxyamino form. The water uptake by the resin was ca. 31 g/g dry resin while its hydrogen ion capacity...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Multi-Science Publishing
2009
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/16312/1/Preparation%20and%20characterization%20of%20polyamidoxime%20chelating%20resin%20from%20rubberwood%20fibre.pdf http://psasir.upm.edu.my/id/eprint/16312/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Grafted rubberwood fibre was converted to polyamidoxime
ion-exchange resin in order to remove heavy metal ions from aqueous solution. The cation-exchange resin existed predominantly in the syn-hydroxyamino form. The water uptake by the resin was ca. 31 g/g dry resin while its hydrogen ion capacity was 3.6 mmol/g. The adsorption capacity of the resin towards different metal ions from wastewater was determined at different pH values
within the range 1–6. The prepared chelating ion-exchanger exhibited the highest adsorption capacity towards Cu2+ ions (3.83 mmol/g), followed by Cd2+,Fe3+, Pb2+, Ni2+ and Co3+ ions, respectively. The results showed that the adsorption capacity depended on the solution pH. Polyamidoxime ion-exchange resin was also used to separate Co3+ and Ni2+ ions from Cu2+ ions using a column technique. On passing Cu2+/Ni2+ and Cu2+/Co3+ ion mixtures through the resin at
pH 3, Cu2+ ions were adsorbed by the resin but no sorption of Ni2+ or Co3+ ions was detected. Approximately 98% of the Cu2+ ions could be desorbed from the resin. FT-IR spectroscopy was used to confirm the conversion of
polyacrylonitrile-g-rubberwood fibre to polyamidoxime. |
|---|