Removal of Cu(II) and Pb(II) from wastewater using biochar-clay nanocomposite.

Soetaredjo, Felycia Edi and Ju, Yi-Hsu and Ismadji, Suryadi and Ayucitra, Aning (2017) Removal of Cu(II) and Pb(II) from wastewater using biochar-clay nanocomposite. Desalination and Water Treatment, 82. pp. 188-200. ISSN 1944-3994

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Official URL: http://www.deswater.com/DWT_abstracts/vol_82/82_20...

Abstract

The new nanocomposite material has been synthesized from inexpensive and abundantly available materials. Bentonite and water hyacinth were used as the precursors for the preparation of bentonite – biochar nanocomposite. The nanocomposite was produced at 400°C under a combination of nitro¬gen and carbon dioxide environment. The adsorption capability of the nanocomposite was tested for the removal of Cu(II) and Pb(II) from aqueous solution. Temperature dependent forms of Langmuir and Freundlich equations were employed to correlate the experimental data. Based on the physical meaning assessment of the parameters, the Langmuir equation with its temperature dependent form can correlate the experimental data better than Freundlich. The maximum adsorption capacity for nanocomposite toward Cu(II) and Pb(II) are 78.1 mg/g and 44.7 mg/g, respectively. The adsorption kinetic data of Cu(II) and Pb(II) onto bentonite and nanocomposite follow pseudo-first-order equa-tion, with k1 strongly dependent on temperature. The thermodynamic study reveals that the adsorp¬tion Cu(II) and Pb(II) was controlled by physical adsorption and spontaneous.

Item Type: Article
Uncontrolled Keywords: Nanocomposite; Biochar; Bentonite; Adsorption isotherm; Adsorption kinetic
Subjects: Engineering > Chemical Engineering
Divisions: Journal Publication
Depositing User: F.X. Hadi
Date Deposited: 27 Aug 2018 04:14
Last Modified: 10 Sep 2018 03:01
URI: http://repository.wima.ac.id/id/eprint/16108

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