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Vanadium (V) Adsorption from Aqueous Solutions Using Xerogel on the Basis of Silica and Iron Oxide Matrix

Vanadium is considered a strategic metal with wide applications in various industries due to its unique chemical and physical properties. On the basis of these considerations, the recovery of vanadium (V) is mandatory because of the lack of raw materials. Various methods are used to recover vanadium...

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Autores principales: Matusoiu, Florin, Negrea, Adina, Ciopec, Mihaela, Duteanu, Narcis, Negrea, Petru, Ianasi, Paula, Ianasi, Cătălin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9786883/
https://www.ncbi.nlm.nih.gov/pubmed/36556774
http://dx.doi.org/10.3390/ma15248970
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author Matusoiu, Florin
Negrea, Adina
Ciopec, Mihaela
Duteanu, Narcis
Negrea, Petru
Ianasi, Paula
Ianasi, Cătălin
author_facet Matusoiu, Florin
Negrea, Adina
Ciopec, Mihaela
Duteanu, Narcis
Negrea, Petru
Ianasi, Paula
Ianasi, Cătălin
author_sort Matusoiu, Florin
collection PubMed
description Vanadium is considered a strategic metal with wide applications in various industries due to its unique chemical and physical properties. On the basis of these considerations, the recovery of vanadium (V) is mandatory because of the lack of raw materials. Various methods are used to recover vanadium (V) from used aqueous solutions. This study develops a clean and effective process for the recovery of vanadium (V) by using the adsorption method. At the same time, this study synthesizes a material starting from silica matrices and iron oxides, which is used as an adsorbent material. To show the phase composition, the obtained material is characterized by X-ray diffraction showing that the material is present in the amorphous phase, with a crystal size of 20 nm. However, the morphological texture of the material is determined by the N(2) adsorption–desorption method, proving that the adsorbent material has a high surface area of 305 m(2)/g with a total pore volume of 1.55 cm(3)/g. To determine the efficiency of the SiO(2)Fe(x)O(y) material for the recovery of vanadium through the adsorption process, the role of specific parameters, such as the L-to-V ratio, pH, contact time, temperature, and initial vanadium concentration, must be evaluated. The adsorption process mechanism was established through kinetic, thermodynamic, and equilibrium studies. In our case, the process is physical, endothermic, spontaneous, and takes place at the interface of SiO(2)Fe(x)O(y) with V(2)O(5). Following equilibrium studies, the maximum adsorption capacity of the SiO(2)Fe(x)O(y) material was 58.8 mg (V)/g of material.
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spelling pubmed-97868832022-12-24 Vanadium (V) Adsorption from Aqueous Solutions Using Xerogel on the Basis of Silica and Iron Oxide Matrix Matusoiu, Florin Negrea, Adina Ciopec, Mihaela Duteanu, Narcis Negrea, Petru Ianasi, Paula Ianasi, Cătălin Materials (Basel) Article Vanadium is considered a strategic metal with wide applications in various industries due to its unique chemical and physical properties. On the basis of these considerations, the recovery of vanadium (V) is mandatory because of the lack of raw materials. Various methods are used to recover vanadium (V) from used aqueous solutions. This study develops a clean and effective process for the recovery of vanadium (V) by using the adsorption method. At the same time, this study synthesizes a material starting from silica matrices and iron oxides, which is used as an adsorbent material. To show the phase composition, the obtained material is characterized by X-ray diffraction showing that the material is present in the amorphous phase, with a crystal size of 20 nm. However, the morphological texture of the material is determined by the N(2) adsorption–desorption method, proving that the adsorbent material has a high surface area of 305 m(2)/g with a total pore volume of 1.55 cm(3)/g. To determine the efficiency of the SiO(2)Fe(x)O(y) material for the recovery of vanadium through the adsorption process, the role of specific parameters, such as the L-to-V ratio, pH, contact time, temperature, and initial vanadium concentration, must be evaluated. The adsorption process mechanism was established through kinetic, thermodynamic, and equilibrium studies. In our case, the process is physical, endothermic, spontaneous, and takes place at the interface of SiO(2)Fe(x)O(y) with V(2)O(5). Following equilibrium studies, the maximum adsorption capacity of the SiO(2)Fe(x)O(y) material was 58.8 mg (V)/g of material. MDPI 2022-12-15 /pmc/articles/PMC9786883/ /pubmed/36556774 http://dx.doi.org/10.3390/ma15248970 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Matusoiu, Florin
Negrea, Adina
Ciopec, Mihaela
Duteanu, Narcis
Negrea, Petru
Ianasi, Paula
Ianasi, Cătălin
Vanadium (V) Adsorption from Aqueous Solutions Using Xerogel on the Basis of Silica and Iron Oxide Matrix
title Vanadium (V) Adsorption from Aqueous Solutions Using Xerogel on the Basis of Silica and Iron Oxide Matrix
title_full Vanadium (V) Adsorption from Aqueous Solutions Using Xerogel on the Basis of Silica and Iron Oxide Matrix
title_fullStr Vanadium (V) Adsorption from Aqueous Solutions Using Xerogel on the Basis of Silica and Iron Oxide Matrix
title_full_unstemmed Vanadium (V) Adsorption from Aqueous Solutions Using Xerogel on the Basis of Silica and Iron Oxide Matrix
title_short Vanadium (V) Adsorption from Aqueous Solutions Using Xerogel on the Basis of Silica and Iron Oxide Matrix
title_sort vanadium (v) adsorption from aqueous solutions using xerogel on the basis of silica and iron oxide matrix
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9786883/
https://www.ncbi.nlm.nih.gov/pubmed/36556774
http://dx.doi.org/10.3390/ma15248970
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