Graphene oxide-CuFe2O4 nanohybrid material as an adsorbent of Congo red dye

Adamantia Zourou; Afroditi Ntziouni; Nikolaos Adamopoulos; Tiberiu Roman; Fu Zhang; Mauricio Terrones; Konstantinos Kordatos

Carbon Trends (Apr 2022)

Graphene oxide-CuFe2O4 nanohybrid material as an adsorbent of Congo red dye

Adamantia Zourou,
Afroditi Ntziouni,
Nikolaos Adamopoulos,
Tiberiu Roman,
Fu Zhang,
Mauricio Terrones,
Konstantinos Kordatos

Affiliations

Adamantia Zourou: School of Chemical Engineering, National Technical University of Athens, 9 Iroon PolytechniouSt., Zografou 15780, Athens, Greece
Afroditi Ntziouni: School of Chemical Engineering, National Technical University of Athens, 9 Iroon PolytechniouSt., Zografou 15780, Athens, Greece; Corresponding authors.
Nikolaos Adamopoulos: School of Chemical Engineering, National Technical University of Athens, 9 Iroon PolytechniouSt., Zografou 15780, Athens, Greece
Tiberiu Roman: National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iasi, Romania; Integrated Center of Environmental Science Studies in the North Eastern Region-CERNESIM, ''Alexandru Ioan Cuza'' University of Iasi, Carol I nr. 11 Blvd., 700506 Iasi, Romania
Fu Zhang: Department of Materials Science and Engineering and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA 16802, USA
Mauricio Terrones: Department of Materials Science and Engineering and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA 16802, USA; Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA; Department of Chemistry and Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA
Konstantinos Kordatos: School of Chemical Engineering, National Technical University of Athens, 9 Iroon PolytechniouSt., Zografou 15780, Athens, Greece; Corresponding authors.

Journal volume & issue: Vol. 7
p. 100147

Abstract

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This work evaluates the performance of graphene oxide (GO) - copper ferrite (CuFe2O4) nanohybrid in the removal of Congo Red (CR) dye from aqueous solutions. The adsorbent was prepared via a three-step method. Firstly, GO was produced via a modified Hummers method, using graphite powder as starting material. Following this, GO surface was treated with ionic surfactants, cetyltrimethylammonium bromide (CTAB) and poly(sodium-4-styrenesulfonate) (PSS). Subsequently, the functionalized GO was decorated with magnetic CuFe2O4 nanoparticles via an electrostatic self-assembly process using a solvothermal treatment. The as-synthesized CuFe2O4-GO nanohybrid was characterized by X-Ray Diffraction (XRD) Analysis, Fourier Transform Infrared (FT-IR) Spectroscopy, micro-Raman Spectroscopy, Thermogravimetric Analysis (TGA), Field Emission Scanning Electron Microscopy (FE-SEM), High-Resolution Transition Electron Microscopy (HR-TEM) with Energy Dispersive Spectroscopy (EDS) mapping, as well as, N2 Adsorption/Desorption measurements. We investigated the CR adsorption of the GO-CuFe2O4 nanohybrid at various initial CR concentrations and contact times. Both Langmuir and Freundlich models were employed to describe the adsorption isotherms, while the adsorption kinetics of CR by GO-CuFe2O4 were found to be pseudo-second order. Our results demonstrate that GO-CuFe2O4 is an attractive adsorbent for the efficient removal of CR dye from wastewater.

Published in Carbon Trends

ISSN: 2667-0569 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/carbon-trends/

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