Development of iron oxide/activated carbon nanoparticle composite for the removal of Cr(VI), Cu(II) and Cd(II) ions from aqueous solution

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Jain , M , Yadav , M , Kohout , T , Lahtinen , M , Garg , V K & Sillanpää , M 2018 , ' Development of iron oxide/activated carbon nanoparticle composite for the removal of Cr(VI), Cu(II) and Cd(II) ions from aqueous solution ' , Water Resources and Industry , vol. 20 , pp. 54-74 . https://doi.org/10.1016/j.wri.2018.10.001

Title: Development of iron oxide/activated carbon nanoparticle composite for the removal of Cr(VI), Cu(II) and Cd(II) ions from aqueous solution
Author: Jain, Monika; Yadav, Mithilesh; Kohout, Tomas; Lahtinen, Manu; Garg, Vinod Kumar; Sillanpää, Mika
Contributor organization: Planetary-system research
Department of Physics
Date: 2018-12
Language: eng
Number of pages: 21
Belongs to series: Water Resources and Industry
ISSN: 2212-3717
DOI: https://doi.org/10.1016/j.wri.2018.10.001
URI: http://hdl.handle.net/10138/267628
Abstract: Iron oxide (Fe3O4) and iron oxide/activated carbon (Fe3O4/AC) were fabricated by co-precipitation method for the removal of Cr(VI), Cu(II) and Cd(II) ions from aqueous solution in batch mode. These nanoparticles were characterized by BET, FTIR, XRD, SEM/TEM and VSM. The optimum conditions for the removal of ions were pH = 2 for Cr(VI) and 6 for Cu(II) and Cd (II), initial metal ion concentration = 50 mg L-1, nanoparticle dose = 50 mg/10 mL, temperature = 25 +/- 1 degrees C, shaking speed = 180 rpm and contact time = 3 h. The equilibrium data of ions sorption were well described by Langmuir, Freundlich, Redlich-Peterson and Intraparticle Diffusion model. The R-2 values obtained by Langmuir model were highest by Fe3O4/AC for Cr(VI) = 0.9994, Cu(II) = 0.9998 and Cd(II) = 0.9750. The temperature dependent study in the range of 288-328 K confirmed that the adsorption process was endothermic in nature. Desorption studies with 0.1M HCl stated that these nanoparticles can be regenerated effectively and can be used after four adsorption-desorption cycles without any mass loss.
Subject: Activated carbon
pH
XRD
TEM
iron oxide nanoparticles
INDUSTRIAL WASTE-WATER
MODIFIED MAGNETIC NANOPARTICLES
NANO-PARTICLES
CHROMIUM VI REMOVAL
HEXAVALENT CHROMIUM
OXIDE COMPOSITE
Iron oxide nanoparticles
COPPER IONS
ACTIVATED CARBON
EFFICIENT ADSORBENTS
LEAD(II) REMOVAL
116 Chemical sciences
215 Chemical engineering
Peer reviewed: Yes
Rights: cc_by_nc_nd
Usage restriction: openAccess
Self-archived version: acceptedVersion


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