New Sustainable, Scalable and One-Step Synthesis of Iron Oxide Nanoparticles by Ion Exchange Process
This work introduces an innovative, sustainable, and scalable synthesis of iron oxides nanoparticles (NPs) in aqueous suspension. The method, based on ion exchange process, consists of a one-step procedure, time and energy saving, operating in water and at room temperature, by cheap and renewable re...
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doaj-d02c0c55cb2745eb96eb410694a11fb82021-03-21T00:01:54ZengMDPI AGNanomaterials2079-49912021-03-011179879810.3390/nano11030798New Sustainable, Scalable and One-Step Synthesis of Iron Oxide Nanoparticles by Ion Exchange ProcessLudovico Macera0Valeria Daniele1Claudia Mondelli2Marie Capron3Giuliana Taglieri4Department of Industrial and Information Engineering and Economics, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, I-67100 L’Aquila, ItalyDepartment of Industrial and Information Engineering and Economics, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, I-67100 L’Aquila, ItalyCNR-IOM-OGG, Institut Laue Langevin, 71 Avenue des Martyrs, CEDEX 9, 38042 Grenoble, FranceESRF-The European Synchrotron, 71 Avenue des Martyrs, CEDEX 9, 38042 Grenoble, FranceDepartment of Industrial and Information Engineering and Economics, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, I-67100 L’Aquila, ItalyThis work introduces an innovative, sustainable, and scalable synthesis of iron oxides nanoparticles (NPs) in aqueous suspension. The method, based on ion exchange process, consists of a one-step procedure, time and energy saving, operating in water and at room temperature, by cheap and renewable reagents. The influence of both oxidation state of the initial reagent and reaction atmosphere is considered. Three kinds of iron nanostructured compounds are obtained (2-lines ferrihydrite; layered-structure iron oxyhydroxide δ-FeOOH; and cubic magnetite), in turn used as precursors to obtain hematite and maghemite NPs. All the produced NPs are characterized by a high purity, small particles dimensions (from 2 to 50 nm), and high specific surface area values up to 420 m<sup>2</sup>/g, with yields of production >90%. In particular, among the most common iron oxide NPs, we obtained cubic magnetite NPs at room temperature, characterized by particle dimensions of about 6 nm and a surface area of 170 m<sup>2</sup>/g. We also obtained hematite NPs at very low temperature conditions (that is 2 h at 200 °C), characterized by particles dimensions of about 5 nm with a surface area value of 200 m<sup>2</sup>/g. The obtained results underline the strength of the synthetic method to provide a new, sustainable, tunable, and scalable high-quality production.https://www.mdpi.com/2079-4991/11/3/798ion exchange processδ-FeOOH nanoparticlesferrihydrite nanoparticleshematite nanoparticlesmagnetite nanoparticles |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ludovico Macera Valeria Daniele Claudia Mondelli Marie Capron Giuliana Taglieri |
spellingShingle |
Ludovico Macera Valeria Daniele Claudia Mondelli Marie Capron Giuliana Taglieri New Sustainable, Scalable and One-Step Synthesis of Iron Oxide Nanoparticles by Ion Exchange Process Nanomaterials ion exchange process δ-FeOOH nanoparticles ferrihydrite nanoparticles hematite nanoparticles magnetite nanoparticles |
author_facet |
Ludovico Macera Valeria Daniele Claudia Mondelli Marie Capron Giuliana Taglieri |
author_sort |
Ludovico Macera |
title |
New Sustainable, Scalable and One-Step Synthesis of Iron Oxide Nanoparticles by Ion Exchange Process |
title_short |
New Sustainable, Scalable and One-Step Synthesis of Iron Oxide Nanoparticles by Ion Exchange Process |
title_full |
New Sustainable, Scalable and One-Step Synthesis of Iron Oxide Nanoparticles by Ion Exchange Process |
title_fullStr |
New Sustainable, Scalable and One-Step Synthesis of Iron Oxide Nanoparticles by Ion Exchange Process |
title_full_unstemmed |
New Sustainable, Scalable and One-Step Synthesis of Iron Oxide Nanoparticles by Ion Exchange Process |
title_sort |
new sustainable, scalable and one-step synthesis of iron oxide nanoparticles by ion exchange process |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2021-03-01 |
description |
This work introduces an innovative, sustainable, and scalable synthesis of iron oxides nanoparticles (NPs) in aqueous suspension. The method, based on ion exchange process, consists of a one-step procedure, time and energy saving, operating in water and at room temperature, by cheap and renewable reagents. The influence of both oxidation state of the initial reagent and reaction atmosphere is considered. Three kinds of iron nanostructured compounds are obtained (2-lines ferrihydrite; layered-structure iron oxyhydroxide δ-FeOOH; and cubic magnetite), in turn used as precursors to obtain hematite and maghemite NPs. All the produced NPs are characterized by a high purity, small particles dimensions (from 2 to 50 nm), and high specific surface area values up to 420 m<sup>2</sup>/g, with yields of production >90%. In particular, among the most common iron oxide NPs, we obtained cubic magnetite NPs at room temperature, characterized by particle dimensions of about 6 nm and a surface area of 170 m<sup>2</sup>/g. We also obtained hematite NPs at very low temperature conditions (that is 2 h at 200 °C), characterized by particles dimensions of about 5 nm with a surface area value of 200 m<sup>2</sup>/g. The obtained results underline the strength of the synthetic method to provide a new, sustainable, tunable, and scalable high-quality production. |
topic |
ion exchange process δ-FeOOH nanoparticles ferrihydrite nanoparticles hematite nanoparticles magnetite nanoparticles |
url |
https://www.mdpi.com/2079-4991/11/3/798 |
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