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Iron Molybdate Fe(2)(MoO(4))(3) Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions

The present study investigated iron molybdate (Fe(2)(MoO(4))(3)), synthesized via a simple method, as a nanosorbent for methylene blue (MB) dye removal from aqueous solutions. Investigations of the effects of several parameters like contact time, adsorbent dose, initial dye concentration, temperatur...

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Autores principales: Mohmoud, Ahmed, Rakass, Souad, Oudghiri Hassani, Hicham, Kooli, Fethi, Abboudi, Mostafa, Ben Aoun, Sami
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7663641/
https://www.ncbi.nlm.nih.gov/pubmed/33153124
http://dx.doi.org/10.3390/molecules25215100
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author Mohmoud, Ahmed
Rakass, Souad
Oudghiri Hassani, Hicham
Kooli, Fethi
Abboudi, Mostafa
Ben Aoun, Sami
author_facet Mohmoud, Ahmed
Rakass, Souad
Oudghiri Hassani, Hicham
Kooli, Fethi
Abboudi, Mostafa
Ben Aoun, Sami
author_sort Mohmoud, Ahmed
collection PubMed
description The present study investigated iron molybdate (Fe(2)(MoO(4))(3)), synthesized via a simple method, as a nanosorbent for methylene blue (MB) dye removal from aqueous solutions. Investigations of the effects of several parameters like contact time, adsorbent dose, initial dye concentration, temperature and pH were carried out. The results showed that MB removal was affected, significantly, by adsorbent dose and pH. Interestingly, lower values of adsorbent dose resulted in the removal of higher amounts of MB. At the optimum pH, the removal efficiency of 99% was gained with an initial MB concentration of ≤60 ppm. The kinetic study specified an excellent correlation of the experimental results with the pseudo-second-order kinetics model. Thermodynamic studies proved a spontaneous, favorable and endothermic removal. The maximum amount of removal capacity of MB dye was 6173 mg/g, which was determined from the Langmuir model. The removal efficiency was shown to be retained after three cycles of reuse, as proven by thermal regeneration tests. The presence and adsorption of the dye onto the Fe(2)(MoO(4))(3) nanoparticle surface, as well as the regeneration of the latter, was ascertained by scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR). These findings are indicative that the investigated nanosorbent is an excellent candidate for the removal of MB in wastewater.
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spelling pubmed-76636412020-11-14 Iron Molybdate Fe(2)(MoO(4))(3) Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions Mohmoud, Ahmed Rakass, Souad Oudghiri Hassani, Hicham Kooli, Fethi Abboudi, Mostafa Ben Aoun, Sami Molecules Article The present study investigated iron molybdate (Fe(2)(MoO(4))(3)), synthesized via a simple method, as a nanosorbent for methylene blue (MB) dye removal from aqueous solutions. Investigations of the effects of several parameters like contact time, adsorbent dose, initial dye concentration, temperature and pH were carried out. The results showed that MB removal was affected, significantly, by adsorbent dose and pH. Interestingly, lower values of adsorbent dose resulted in the removal of higher amounts of MB. At the optimum pH, the removal efficiency of 99% was gained with an initial MB concentration of ≤60 ppm. The kinetic study specified an excellent correlation of the experimental results with the pseudo-second-order kinetics model. Thermodynamic studies proved a spontaneous, favorable and endothermic removal. The maximum amount of removal capacity of MB dye was 6173 mg/g, which was determined from the Langmuir model. The removal efficiency was shown to be retained after three cycles of reuse, as proven by thermal regeneration tests. The presence and adsorption of the dye onto the Fe(2)(MoO(4))(3) nanoparticle surface, as well as the regeneration of the latter, was ascertained by scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR). These findings are indicative that the investigated nanosorbent is an excellent candidate for the removal of MB in wastewater. MDPI 2020-11-03 /pmc/articles/PMC7663641/ /pubmed/33153124 http://dx.doi.org/10.3390/molecules25215100 Text en © 2020 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
Mohmoud, Ahmed
Rakass, Souad
Oudghiri Hassani, Hicham
Kooli, Fethi
Abboudi, Mostafa
Ben Aoun, Sami
Iron Molybdate Fe(2)(MoO(4))(3) Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions
title Iron Molybdate Fe(2)(MoO(4))(3) Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions
title_full Iron Molybdate Fe(2)(MoO(4))(3) Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions
title_fullStr Iron Molybdate Fe(2)(MoO(4))(3) Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions
title_full_unstemmed Iron Molybdate Fe(2)(MoO(4))(3) Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions
title_short Iron Molybdate Fe(2)(MoO(4))(3) Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions
title_sort iron molybdate fe(2)(moo(4))(3) nanoparticles: efficient sorbent for methylene blue dye removal from aqueous solutions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7663641/
https://www.ncbi.nlm.nih.gov/pubmed/33153124
http://dx.doi.org/10.3390/molecules25215100
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