Preparation of graphene oxide/chitosan/ferrite nanocomposite for Chromium(VI) removal from aqueous solution

A magnetically modified graphene oxide/chitosan/ferrite (GCF) nanocomposite material was synthesized and exploited for removal of Chromium(VI) from aqueous solution. The GCF nanocomposite material was characterized by powder-X-ray diffraction (powder-XRD), Fourier transform infrared spectroscopy (FT...

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Bibliographic Details
Published in:International journal of biological macromolecules 2018-11, Vol.119, p.540-547
Main Authors: Samuel, Melvin S., Shah, Sk. Sheriff, Subramaniyan, Vasudevan, Qureshi, Tanvir, Bhattacharya, Jayanta, Pradeep Singh, N.D.
Format: Article
Language:English
Subjects:
Adsorption
Chitosan - chemistry
Chromium - chemistry
Chromium - isolation & purification
Chromium(VI)
Ferric Compounds - chemistry
GCF nanocomposite material
Graphite - chemistry
Isotherms
Kinetics
Nanocomposites - chemistry
Oxides - chemistry
Solutions
Water - chemistry
Water Pollutants, Chemical - chemistry
Water Pollutants, Chemical - isolation & purification
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Summary:A magnetically modified graphene oxide/chitosan/ferrite (GCF) nanocomposite material was synthesized and exploited for removal of Chromium(VI) from aqueous solution. The GCF nanocomposite material was characterized by powder-X-ray diffraction (powder-XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope- energy dispersive X-ray (SEM-EDX) analysis, transmission electron microscopy (TEM) thermogravimetric analysis (TGA), UV–vis diffusive reflectance spectra and Brunauer–Emmett–Teller (BET) analysis. The effect of pH, adsorbent dose, contact time and initial Cr(VI) metal ion concentration were studied in batch process. The GCF nanocomposite material showed an adsorption capacity of 270.27 mg g−1 for Cr(VI) at pH 2.0. The adsorption mechanism of GCF adsorbent material was well described by Langmuir isotherm and pseudo second order kinetic model, with a high regression coefficient (
ISSN:0141-8130
1879-0003
DOI:10.1016/j.ijbiomac.2018.07.052