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MWCNTs-Fe3O4 nanocomposite for Hg(II) high adsorption efficiency

Sadegh, Hamidreza and Ali, Gomaa A. M. and Makhlouf, Abdel Salam Hamdy and K. F., Chong and Alharbi, Njud S. and Agarwal, Shilpi and Gupta, Vinod Kumar (2018) MWCNTs-Fe3O4 nanocomposite for Hg(II) high adsorption efficiency. Journal of Molecular Liquids, 258. pp. 345-353. ISSN 0167-7322

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Abstract

Magnetic carbon nanotubes composite (MWCNTs-Fe3O4) was successfully prepared and characterized using different techniques. MWCNTs-Fe3O4 displays entangled network of oxidized MWCNTs attached with Fe3O4 clusters with specific surface area of 92 m2 g−1. The adsorption performance of as prepared composite was investigated for Hg(II) removal. Several experimental factors affecting Hg(II) adsorption process by MWCNTs-Fe3O4 were studied including, adsorbent dosage, contact time, pH and metal ion concentration. A high adsorption capacity of 238.78 mg g−1 was obtained according to Langmuir model. In addition, pseudo-second-order and the Langmuir isotherm model were used to fit the adsorption kinetic and equilibrium data, respectively. The results recommend the successful application of MWCNTs-Fe3O4 for Hg(II) removal via batch adsorption technique.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Carbon nanotubes; Nanocomposite; Water treatment; Adsorption; Hg(II) removal; Pollutants
Subjects: Q Science > QD Chemistry
Faculty/Division: Faculty of Industrial Sciences And Technology
Depositing User: Noorul Farina Arifin
Date Deposited: 18 Sep 2018 05:00
Last Modified: 28 Jan 2019 08:47
URI: http://umpir.ump.edu.my/id/eprint/22121
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