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New efficient chitosan derivative for cu(ii) ions removal: characterization and adsorption performance

Sutirman, Z. A. and Rahim, E. A. and Sanagi, M. M. and Abd. Karim, K. J. (2020) New efficient chitosan derivative for cu(ii) ions removal: characterization and adsorption performance. International Journal of Biological Macromolecules, 153 . pp. 513-522.

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Official URL: https://dx.doi.org/10.1016/j.ijbiomac.2020.03.015

Abstract

A new crosslinked chitosan grafted with methyl methacrylate (M-CTS) adsorbent was synthesized via free radical polymerization for effective removal of Cu(Q) ions from aqueous solution. Crosslinked chitosan (1 g) was grafted with 29.96 x 10(-1) M methyl methacrylate in the presence of 2.63 x 10(-1) M ammonium persulfate as initiator at 60 degrees C for 2 h to give grafting and yield percentages of 201% and 67%, respectively. Batch adsorption experiment was performed as a function of solution pH, initial metal ion concentration and contact time. The isotherm data were adequately described by Langmuir model, while kinetic study revealed that the pseudo-second order rate model best fitted for the experimental data. The maximum adsorption capacity for M-CTS at pH 4 was 192.31 mg g(-1). Furthermore, the reusability of over six adsorption-desorption cycles suggested that was is a durable adsorbent and good candidate for metal ions treatment.

Item Type:Article
Uncontrolled Keywords:chitosan, chemical modification, copper ions
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:86551
Deposited By: Narimah Nawil
Deposited On:30 Sep 2020 08:41
Last Modified:30 Sep 2020 08:41

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