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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/19174
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dc.contributor.authorVerma B.-
dc.contributor.authorBalomajumder, Chandrajit-
dc.date.accessioned2021-07-11T16:09:13Z-
dc.date.available2021-07-11T16:09:13Z-
dc.date.issued2020-
dc.identifier.citationKorean Journal of Chemical Engineering(2020), 37(7): 1157-1165-
dc.identifier.issn2561115-
dc.identifier.urihttps://doi.org/10.1007/s11814-020-0516-3-
dc.identifier.urihttp://repository.iitr.ac.in/handle/123456789/19174-
dc.description.abstractMagnetic cobalt ferrites (CoFe O ) were synthesized by sol-gel method. These nanoparticles were ultra-sonicated with surface modified multi-walled carbon nanotubes (SM-MWCNTs) to form CoFe O /SM-MWCNTs nanocomposites. The as-prepared materials were used as an adsorbent for the removal of hexavalent chromium (Cr(VI)) arising from the presence of dichromate ions (Cr O ) in the electroplating effluent. The synthesized nanocomposites were characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-Ray diffraction (XRD), Fourier transmission infrared spectroscopy (FT-IR), raman spectroscopy, thermo-gravimetric analysis (TGA), and zeta analyzer. The effect of the environmental chemistry of the solution on the adsorption has been discussed. The adsorption isotherm of Cr(VI) adsorption onto the as-synthesized CoFe O /SM-MWCNTs best fitted the Langmuir Adsorption Isotherm model. The high adsorption capacity of 100mg/g was achieved at 40°C under optimized conditions. Besides, the magnetic properties of synthesized CoFe O /SM-MWCNTs nanocomposites allow them to separate from the aqueous solution by magnetization easily. Even after seven consecutive adsorption-desorption cycles, the CoFe O /SM-MWCNTs nanocomposites presented an efficiency loss of less than 20% for the removal of Cr(VI) ions. This study clearly shows that cobalt nanocomposites are promising candidates in environmental applications. -
dc.language.isoen_US-
dc.publisherSpringer-
dc.relation.ispartofKorean Journal of Chemical Engineering-
dc.subjectCobalt Ferrites-
dc.subjectElectroplating-
dc.subjectHeavy Metal-
dc.subjectNanocomposites-
dc.subjectNanotubes-
dc.titleFabrication of magnetic cobalt ferrite nanocomposites: an advanced method of removal of toxic dichromate ions from electroplating wastewater-
dc.typeArticle-
dc.scopusid57191976974-
dc.scopusid35615087500-
dc.affiliationVerma, B., Department of Chemical Engineering, IIT Roorkee, Roorkee, 24766, India-
dc.affiliationBalomajumder, C., Department of Chemical Engineering, IIT Roorkee, Roorkee, 24766, India-
dc.description.correspondingauthorVerma, B.; Department of Chemical Engineering, India; email: bverma@ch.iitr.ac.in-
Appears in Collections:Journal Publications [CH]

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