Isotherm and Kinetic Modeling of Strontium Adsorption on Graphene Oxide

In this study, graphene oxide (GO) was synthesized using Hummers method. The synthesized GO was characterized using field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), Fourier transformed infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and Brunauer–Em...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Abdulrahman Abu-Nada, Ahmed Abdala, Gordon McKay
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	graphene oxide adsorption strontium adsorption isotherms adsorption kinetics Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/f0c6a8e700ee4195b4931501f2554975
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:f0c6a8e700ee4195b4931501f2554975
record_format	dspace
spelling	oai:doaj.org-article:f0c6a8e700ee4195b4931501f25549752021-11-25T18:29:44ZIsotherm and Kinetic Modeling of Strontium Adsorption on Graphene Oxide10.3390/nano111127802079-4991https://doaj.org/article/f0c6a8e700ee4195b4931501f25549752021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2780https://doaj.org/toc/2079-4991In this study, graphene oxide (GO) was synthesized using Hummers method. The synthesized GO was characterized using field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), Fourier transformed infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and Brunauer–Emmett–Teller (BET) nitrogen adsorption. The analyses confirmed the presence of oxygen functional groups (C=O and C-O-C) on the GO surface. These oxygen functional groups act as active sites in the adsorption Sr (II). The BET analysis revealed the surface area of GO of 232 m<sup>2</sup>/g with a pore volume of 0.40 cm<sup>3</sup>/g. The synthesized GO was used as an adsorbent for removing Sr (II) from aqueous solutions. The adsorption equilibrium and kinetic results were consistent with the Langmuir isotherm model and the pseudo-second-order kinetic model. A maximum strontium adsorption capacity of 131.4 mg/g was achieved. The results show that the GO has an excellent adsorption capability for removing Sr (II) from aqueous solutions and potential use in wastewater treatment applications.Abdulrahman Abu-NadaAhmed AbdalaGordon McKayMDPI AGarticlegraphene oxideadsorptionstrontiumadsorption isothermsadsorption kineticsChemistryQD1-999ENNanomaterials, Vol 11, Iss 2780, p 2780 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	graphene oxide adsorption strontium adsorption isotherms adsorption kinetics Chemistry QD1-999
spellingShingle	graphene oxide adsorption strontium adsorption isotherms adsorption kinetics Chemistry QD1-999 Abdulrahman Abu-Nada Ahmed Abdala Gordon McKay Isotherm and Kinetic Modeling of Strontium Adsorption on Graphene Oxide
description	In this study, graphene oxide (GO) was synthesized using Hummers method. The synthesized GO was characterized using field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), Fourier transformed infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and Brunauer–Emmett–Teller (BET) nitrogen adsorption. The analyses confirmed the presence of oxygen functional groups (C=O and C-O-C) on the GO surface. These oxygen functional groups act as active sites in the adsorption Sr (II). The BET analysis revealed the surface area of GO of 232 m<sup>2</sup>/g with a pore volume of 0.40 cm<sup>3</sup>/g. The synthesized GO was used as an adsorbent for removing Sr (II) from aqueous solutions. The adsorption equilibrium and kinetic results were consistent with the Langmuir isotherm model and the pseudo-second-order kinetic model. A maximum strontium adsorption capacity of 131.4 mg/g was achieved. The results show that the GO has an excellent adsorption capability for removing Sr (II) from aqueous solutions and potential use in wastewater treatment applications.
format	article
author	Abdulrahman Abu-Nada Ahmed Abdala Gordon McKay
author_facet	Abdulrahman Abu-Nada Ahmed Abdala Gordon McKay
author_sort	Abdulrahman Abu-Nada
title	Isotherm and Kinetic Modeling of Strontium Adsorption on Graphene Oxide
title_short	Isotherm and Kinetic Modeling of Strontium Adsorption on Graphene Oxide
title_full	Isotherm and Kinetic Modeling of Strontium Adsorption on Graphene Oxide
title_fullStr	Isotherm and Kinetic Modeling of Strontium Adsorption on Graphene Oxide
title_full_unstemmed	Isotherm and Kinetic Modeling of Strontium Adsorption on Graphene Oxide
title_sort	isotherm and kinetic modeling of strontium adsorption on graphene oxide
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f0c6a8e700ee4195b4931501f2554975
work_keys_str_mv	AT abdulrahmanabunada isothermandkineticmodelingofstrontiumadsorptionongrapheneoxide AT ahmedabdala isothermandkineticmodelingofstrontiumadsorptionongrapheneoxide AT gordonmckay isothermandkineticmodelingofstrontiumadsorptionongrapheneoxide
_version_	1718411111031635968

Isotherm and Kinetic Modeling of Strontium Adsorption on Graphene Oxide

Ejemplares similares