Título:	Phosphate capture enhancement using designed iron oxide-based nanostructures
Autor(es):	Duenas Ramirez, Paula Chaedong Lee Fedderwitz, Rebecca Clavijo, Antonia R. Barbosa, Débora P. P. Julliot, Maxime Ramos, Joana Vaz Begin, Dominique Le Calvé, Stéphane Zaloszyc, Ariane Choquet, Philippe Soler, Maria Aparecida Godoy Mertz, Damien Kofinas, Peter Yuanzhe Piao Begin-Colin, Sylvie
ORCID:	https://orcid.org/0000-0003-1193-5904 https://orcid.org/0000-0002-8169-7086 https://orcid.org/0000-0003-0514-0726 https://orcid.org/0000-0003-0514-0726 https://orcid.org/0000-0002-0444-873X https://orcid.org/0000-0002-6745-8978 https://orcid.org/0000-0002-2293-2226
Afiliação do autor:	University of Strasbourg, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 Seoul National University, Graduate School of Convergence Science and Technology University of Maryland, Department of Chemical and Biomolecular Engineering University of Brasilia, Institute of Physics University of Brasilia, Institute of Physics University of Strasbourg, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 University of Strasbourg, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 CNRS-Université de Strasbourg, Institut de Chimie et Procédés pour l’Energie, l’Environnement et la Santé (ICPEES), UMR-7515 CNRS-Université de Strasbourg, Institut de Chimie et Procédés pour l’Energie, l’Environnement et la Santé (ICPEES), UMR-7515 CNRS-Université de Strasbourg, Institut de Chimie et Procédés pour l’Energie, l’Environnement et la Santé (ICPEES), UMR-7515 CNRS/University of Strasbourg, Laboratoire des Sciences de l’Ingénieur, de l’Informatique et de l’Imagerie (ICube) University of Brasilia, Institute of Physics University of Strasbourg, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 University of Brasilia, Institute of Physics University of Strasbourg, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 University of Maryland, Department of Chemical and Biomolecular Engineering Seoul National University, Graduate School of Convergence Science and Technology Advanced Institutes of Convergence Technology, 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si 16229, Gyeonggi-do, Republic of Korea University of Strasbourg, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504
Assunto:	Óxido de ferro - nanoclusters Alumínio Dopagem com zinco e cobalto fosfato
Data de publicação:	1-Fev-2023
Editora:	MDPI
Referência:	DUENAS RAMIREZ, Paula et al. Phosphate capture enhancement using designed iron oxide-based nanostructures. Nanomaterials, [S.l.], v. 13, n. 3, 587. DOI: https://doi.org/10.3390/nano13030587.
Abstract:	Phosphates in high concentrations are harmful pollutants for the environment, and new and cheap solutions are currently needed for phosphate removal from polluted liquid media. Iron oxide nanoparticles show a promising capacity for removing phosphates from polluted media and can be easily separated from polluted media under an external magnetic field. However, they have to display a high surface area allowing high removal pollutant capacity while preserving their magnetic properties. In that context, the reproducible synthesis of magnetic iron oxide raspberry-shaped nanostructures (RSNs) by a modified polyol solvothermal method has been optimized, and the con- ditions to dope the latter with cobalt, zinc, and aluminum to improve the phosphate adsorption have been determined. These RSNs consist of oriented aggregates of iron oxide nanocrystals, providing a very high saturation magnetization and a superparamagnetic behavior that favor colloidal stability. Finally, the adsorption of phosphates as a function of pH, time, and phosphate concentration has been studied. The undoped and especially aluminum-doped RSNs were demonstrated to be very effective phosphate adsorbents, and they can be extracted from the media by applying a magnet.
Unidade Acadêmica:	Instituto de Física (IF)
Licença:	Copyright: © 2023 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 (https:// creativecommons.org/licenses/by/ 4.0/).
DOI:	https://doi.org/10.3390/nano13030587
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