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Sorption of Cu(II) by chemically grafted hydroxamic acid-zeolite


Haron, Md. Jelas and Shafie, Nur Anisah and Yusof, Nor Azah and Kassim, Anuar and Wan Yunus, Wan Md. Zin and Talebi, S. M. (2009) Sorption of Cu(II) by chemically grafted hydroxamic acid-zeolite. The Malaysian Journal of Analytical Sciences, 13 (1). pp. 52-62. ISSN 1394-2506


Sorption of Cu(II) by zeolite sorbent chemically modified with hydroxamic acid (HASiZP) is described. The maximum sorption capacity of Cu(II) occurred at pH 5. Sorption capacity of Cu(II) by HASiZP was doubled compared to the original zeolite. Kinetic study shows that Cu(II) sorption followed by second order kinetic model. The sorption of Cu(II) followed Langmuir isotherm model with maximum capacity of 33.32 mg/g at 25°C and increased to 48.12 mg/g at 70°C. Cu(II) sorption by the HASiZP was endothermic and spontaneous processes with positive values of entropy changes.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Publisher: Malaysian Society of Analytical Sciences
Keywords: Hydroxamic acid-grafted zeolite; Cu(II); Sorption
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 25 Aug 2015 07:04
Last Modified: 15 Sep 2015 07:36
URI: http://psasir.upm.edu.my/id/eprint/16787
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