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- Title
Preparation and Characterization of Polyamidoxime Chelating Resin from Rubberwood Fibre-g-Polyacrylonitrile.
- Authors
Abuilaiwi, Faraj A.; Atieh, Muataz Ali; Ahmad, Mansor B.; Ibrahim, Nor Azowa; Ab. Rahman, Mohamad Zaki; Yunus, Wan Md. Zin Wan
- Abstract
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.
- Subjects
METAL ions; AQUA ions; CATIONS; ADSORPTION (Chemistry); ACRYLONITRILE
- Publication
Adsorption Science & Technology, 2009, Vol 27, Issue 7, p661
- ISSN
0263-6174
- Publication type
Article
- DOI
10.1260/0263-6174.27.7.661