Cargando…

Highly Efficient Adsorption of Tetracycline Using Chitosan-Based Magnetic Adsorbent

Herein, tetracycline adsorption employing magnetic chitosan (CS·Fe(3)O(4)) as the adsorbent is reported. The magnetic adsorbent was synthesized by the co-precipitation method and characterized through FTIR, XRD, SEM, and VSM analyses. The experimental data showed that the highest maximum adsorption...

Descripción completa

Detalles Bibliográficos
Autores principales: da Silva Bruckmann, Franciele, Schnorr, Carlos Eduardo, da Rosa Salles, Theodoro, Nunes, Franciane Batista, Baumann, Luiza, Müller, Edson Irineu, Silva, Luis F. O., Dotto, Guilherme L., Bohn Rhoden, Cristiano Rodrigo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9696233/
https://www.ncbi.nlm.nih.gov/pubmed/36432981
http://dx.doi.org/10.3390/polym14224854
_version_ 1784838257955045376
author da Silva Bruckmann, Franciele
Schnorr, Carlos Eduardo
da Rosa Salles, Theodoro
Nunes, Franciane Batista
Baumann, Luiza
Müller, Edson Irineu
Silva, Luis F. O.
Dotto, Guilherme L.
Bohn Rhoden, Cristiano Rodrigo
author_facet da Silva Bruckmann, Franciele
Schnorr, Carlos Eduardo
da Rosa Salles, Theodoro
Nunes, Franciane Batista
Baumann, Luiza
Müller, Edson Irineu
Silva, Luis F. O.
Dotto, Guilherme L.
Bohn Rhoden, Cristiano Rodrigo
author_sort da Silva Bruckmann, Franciele
collection PubMed
description Herein, tetracycline adsorption employing magnetic chitosan (CS·Fe(3)O(4)) as the adsorbent is reported. The magnetic adsorbent was synthesized by the co-precipitation method and characterized through FTIR, XRD, SEM, and VSM analyses. The experimental data showed that the highest maximum adsorption capacity was reached at pH 7.0 (211.21 mg g(−1)). The efficiency of the magnetic adsorbent in tetracycline removal was dependent on the pH, initial concentration of adsorbate, and the adsorbent dosage. Additionally, the ionic strength showed a significant effect on the process. The equilibrium and kinetics studies demonstrate that Sips and Elovich models showed the best adjustment for experimental data, suggesting that the adsorption occurs in a heterogeneous surface and predominantly by chemical mechanisms. The experimental results suggest that tetracycline adsorption is mainly governed by the hydrogen bonds and cation–π interactions due to its pH dependence as well as the enhancement in the removal efficiency with the magnetite incorporation on the chitosan surface, respectively. Thermodynamic parameters indicate a spontaneous and exothermic process. Finally, magnetic chitosan proves to be efficient in TC removal even after several adsorption/desorption cycles.
format Online
Article
Text
id pubmed-9696233
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-96962332022-11-26 Highly Efficient Adsorption of Tetracycline Using Chitosan-Based Magnetic Adsorbent da Silva Bruckmann, Franciele Schnorr, Carlos Eduardo da Rosa Salles, Theodoro Nunes, Franciane Batista Baumann, Luiza Müller, Edson Irineu Silva, Luis F. O. Dotto, Guilherme L. Bohn Rhoden, Cristiano Rodrigo Polymers (Basel) Article Herein, tetracycline adsorption employing magnetic chitosan (CS·Fe(3)O(4)) as the adsorbent is reported. The magnetic adsorbent was synthesized by the co-precipitation method and characterized through FTIR, XRD, SEM, and VSM analyses. The experimental data showed that the highest maximum adsorption capacity was reached at pH 7.0 (211.21 mg g(−1)). The efficiency of the magnetic adsorbent in tetracycline removal was dependent on the pH, initial concentration of adsorbate, and the adsorbent dosage. Additionally, the ionic strength showed a significant effect on the process. The equilibrium and kinetics studies demonstrate that Sips and Elovich models showed the best adjustment for experimental data, suggesting that the adsorption occurs in a heterogeneous surface and predominantly by chemical mechanisms. The experimental results suggest that tetracycline adsorption is mainly governed by the hydrogen bonds and cation–π interactions due to its pH dependence as well as the enhancement in the removal efficiency with the magnetite incorporation on the chitosan surface, respectively. Thermodynamic parameters indicate a spontaneous and exothermic process. Finally, magnetic chitosan proves to be efficient in TC removal even after several adsorption/desorption cycles. MDPI 2022-11-11 /pmc/articles/PMC9696233/ /pubmed/36432981 http://dx.doi.org/10.3390/polym14224854 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
da Silva Bruckmann, Franciele
Schnorr, Carlos Eduardo
da Rosa Salles, Theodoro
Nunes, Franciane Batista
Baumann, Luiza
Müller, Edson Irineu
Silva, Luis F. O.
Dotto, Guilherme L.
Bohn Rhoden, Cristiano Rodrigo
Highly Efficient Adsorption of Tetracycline Using Chitosan-Based Magnetic Adsorbent
title Highly Efficient Adsorption of Tetracycline Using Chitosan-Based Magnetic Adsorbent
title_full Highly Efficient Adsorption of Tetracycline Using Chitosan-Based Magnetic Adsorbent
title_fullStr Highly Efficient Adsorption of Tetracycline Using Chitosan-Based Magnetic Adsorbent
title_full_unstemmed Highly Efficient Adsorption of Tetracycline Using Chitosan-Based Magnetic Adsorbent
title_short Highly Efficient Adsorption of Tetracycline Using Chitosan-Based Magnetic Adsorbent
title_sort highly efficient adsorption of tetracycline using chitosan-based magnetic adsorbent
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9696233/
https://www.ncbi.nlm.nih.gov/pubmed/36432981
http://dx.doi.org/10.3390/polym14224854
work_keys_str_mv AT dasilvabruckmannfranciele highlyefficientadsorptionoftetracyclineusingchitosanbasedmagneticadsorbent
AT schnorrcarloseduardo highlyefficientadsorptionoftetracyclineusingchitosanbasedmagneticadsorbent
AT darosasallestheodoro highlyefficientadsorptionoftetracyclineusingchitosanbasedmagneticadsorbent
AT nunesfrancianebatista highlyefficientadsorptionoftetracyclineusingchitosanbasedmagneticadsorbent
AT baumannluiza highlyefficientadsorptionoftetracyclineusingchitosanbasedmagneticadsorbent
AT mulleredsonirineu highlyefficientadsorptionoftetracyclineusingchitosanbasedmagneticadsorbent
AT silvaluisfo highlyefficientadsorptionoftetracyclineusingchitosanbasedmagneticadsorbent
AT dottoguilhermel highlyefficientadsorptionoftetracyclineusingchitosanbasedmagneticadsorbent
AT bohnrhodencristianorodrigo highlyefficientadsorptionoftetracyclineusingchitosanbasedmagneticadsorbent