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

Samuel, Melvin S.; Shah, Sk. Sheriff; Subramaniyan, Vasudevan; Qureshi, Tanvir; Bhattacharya, Jayanta; Singh, N.D. Pradeep

Abstract

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 (

• Journal Article Type: Article
• Acceptance Date: Jul 11, 2018
• Online Publication Date: Jul 31, 2018
• Publication Date: Nov 1, 2018
• Deposit Date: Sep 30, 2020
• Journal: International Journal of Biological Macromolecules
• Print ISSN: 0141-8130
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 119
• Pages: 540-547
• DOI: https://doi.org/10.1016/j.ijbiomac.2018.07.052
• Keywords: GCF nanocomposite material, Isotherms, Kinetics, Chromium(VI)
• Public URL: https://uwe-repository.worktribe.com/output/6726688
• Publisher URL: https://www.sciencedirect.com/science/article/abs/pii/S0141813018321287