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Graphene-Supported Spinel CuFe(2)O(4) Composites: Novel Adsorbents for Arsenic Removal in Aqueous Media

A graphene nanoplate-supported spinel CuFe(2)O(4) composite (GNPs/CuFe(2)O(4)) was successfully synthesized by using a facile thermal decomposition route. Scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), Electron Dispersive Spectroscopy (EDS), X-ray diffr...

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Autores principales: La, Duong Duc, Nguyen, Tuan Anh, Jones, Lathe A., Bhosale, Sheshanath V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5492396/
https://www.ncbi.nlm.nih.gov/pubmed/28587257
http://dx.doi.org/10.3390/s17061292
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author La, Duong Duc
Nguyen, Tuan Anh
Jones, Lathe A.
Bhosale, Sheshanath V.
author_facet La, Duong Duc
Nguyen, Tuan Anh
Jones, Lathe A.
Bhosale, Sheshanath V.
author_sort La, Duong Duc
collection PubMed
description A graphene nanoplate-supported spinel CuFe(2)O(4) composite (GNPs/CuFe(2)O(4)) was successfully synthesized by using a facile thermal decomposition route. Scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), Electron Dispersive Spectroscopy (EDS), X-ray diffraction (XRD) and X-ray Photoelectron Spectroscopy (XPS) were employed to characterize the prepared composite. The arsenic adsorption behavior of the GNPs/CuFe(2)O(4) composite was investigated by carrying out batch experiments. Both the Langmuir and Freundlich models were employed to describe the adsorption isotherm, where the sorption kinetics of arsenic adsorption by the composite were found to be pseudo-second order. The selectivity of the adsorbent toward arsenic over common metal ions in water was also demonstrated. Furthermore, the reusability and regeneration of the adsorbent were investigated by an assembled column filter test. The GNPs/CuFe(2)O(4) composite exhibited significant, fast adsorption of arsenic over a wide range of solution pHs with exceptional durability, selectivity, and recyclability, which could make this composite a very promising candidate for effective removal of arsenic from aqueous solution. The highly sensitive adsorption of the material toward arsenic could be potentially employed for arsenic sensing.
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spelling pubmed-54923962017-07-03 Graphene-Supported Spinel CuFe(2)O(4) Composites: Novel Adsorbents for Arsenic Removal in Aqueous Media La, Duong Duc Nguyen, Tuan Anh Jones, Lathe A. Bhosale, Sheshanath V. Sensors (Basel) Article A graphene nanoplate-supported spinel CuFe(2)O(4) composite (GNPs/CuFe(2)O(4)) was successfully synthesized by using a facile thermal decomposition route. Scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), Electron Dispersive Spectroscopy (EDS), X-ray diffraction (XRD) and X-ray Photoelectron Spectroscopy (XPS) were employed to characterize the prepared composite. The arsenic adsorption behavior of the GNPs/CuFe(2)O(4) composite was investigated by carrying out batch experiments. Both the Langmuir and Freundlich models were employed to describe the adsorption isotherm, where the sorption kinetics of arsenic adsorption by the composite were found to be pseudo-second order. The selectivity of the adsorbent toward arsenic over common metal ions in water was also demonstrated. Furthermore, the reusability and regeneration of the adsorbent were investigated by an assembled column filter test. The GNPs/CuFe(2)O(4) composite exhibited significant, fast adsorption of arsenic over a wide range of solution pHs with exceptional durability, selectivity, and recyclability, which could make this composite a very promising candidate for effective removal of arsenic from aqueous solution. The highly sensitive adsorption of the material toward arsenic could be potentially employed for arsenic sensing. MDPI 2017-06-05 /pmc/articles/PMC5492396/ /pubmed/28587257 http://dx.doi.org/10.3390/s17061292 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
La, Duong Duc
Nguyen, Tuan Anh
Jones, Lathe A.
Bhosale, Sheshanath V.
Graphene-Supported Spinel CuFe(2)O(4) Composites: Novel Adsorbents for Arsenic Removal in Aqueous Media
title Graphene-Supported Spinel CuFe(2)O(4) Composites: Novel Adsorbents for Arsenic Removal in Aqueous Media
title_full Graphene-Supported Spinel CuFe(2)O(4) Composites: Novel Adsorbents for Arsenic Removal in Aqueous Media
title_fullStr Graphene-Supported Spinel CuFe(2)O(4) Composites: Novel Adsorbents for Arsenic Removal in Aqueous Media
title_full_unstemmed Graphene-Supported Spinel CuFe(2)O(4) Composites: Novel Adsorbents for Arsenic Removal in Aqueous Media
title_short Graphene-Supported Spinel CuFe(2)O(4) Composites: Novel Adsorbents for Arsenic Removal in Aqueous Media
title_sort graphene-supported spinel cufe(2)o(4) composites: novel adsorbents for arsenic removal in aqueous media
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5492396/
https://www.ncbi.nlm.nih.gov/pubmed/28587257
http://dx.doi.org/10.3390/s17061292
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