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Title: Synthesis of magnetic nickel ferrites nanocomposites: An advanced remediation of electroplating wastewater
Authors: Verma B.
Balomajumder, Chandrajit
Published in: Journal of the Taiwan Institute of Chemical Engineers
Abstract: Nickel ferrite nanocomposites (NFNCs) were prepared and utilized to remove hexavalent chromium from the effluent of the electroplating industry. The nickel ferrite nanoparticles (NFNPs) were synthesized by the sol-gel auto combustion process, and they were doped ultrasonically onto the surface-modified multi-walled carbon nanotubes (SM-MWCNTs). Characterization results confirmed that the NFNPs with a cubic spinel structure were successfully impregnated onto the SM-MWCNTs. The synthesized NFNCs were tubular structures with an outer diameter in the range of 30–40 nm and had high crystal defect. The NFNCs with the surface area of 210.5 m g offer high magnetic separability due to their paramagnetic behavior. Non-linear kinetic, thermodynamic, and isotherm models were used for interpretations, and high Cr(VI) uptake of 129.83 mg/g was obtained at 40 °C. The Cr(VI) uptake by NFNCs was dominated by electrostatic attractions at a low pH and ion exchange mechanism at a higher pH. Lastly, high efficient recyclability of the NFNCs and applicability in removing other heavy metals from electroplating effluent suggested them to be a promising material in wastewater treatment.
Citation: Journal of the Taiwan Institute of Chemical Engineers(2020), 112(): 106-115
Issue Date: 2020
Publisher: Taiwan Institute of Chemical Engineers
Keywords: Carbon nanotubes
ISSN: 18761070
Author Scopus IDs: 57191976974
Author Affiliations: Verma, B., Department of Chemical Engineering, IIT Roorkee, Roorkee, 24766, India
Balomajumder, C., Department of Chemical Engineering, IIT Roorkee, Roorkee, 24766, India
Corresponding Author: Verma, B.; Department of Chemical Engineering, India; email:
Appears in Collections:Journal Publications [CH]

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