Preparation of magnetic chitosan using local iron sand for mercury removal

Preparation of magnetic chitosan for mercury removal from polluted water had been conducted. Magnetic particles (Fe(3)O(4)) were isolated from local iron sand to provide magnetic properties of chitosan. Glutaraldehyde was used as crosslinking agent of chitosan. The obtained magnetic chitosan was cha...

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Detalles Bibliográficos
Autores principales: Rahmi, Fathurrahmi, Lelifajri, PurnamaWati, Fitri
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6526233/
https://www.ncbi.nlm.nih.gov/pubmed/31193365
http://dx.doi.org/10.1016/j.heliyon.2019.e01731
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author Rahmi
Fathurrahmi
Lelifajri
PurnamaWati, Fitri
author_facet Rahmi
Fathurrahmi
Lelifajri
PurnamaWati, Fitri
author_sort Rahmi
collection PubMed
description Preparation of magnetic chitosan for mercury removal from polluted water had been conducted. Magnetic particles (Fe(3)O(4)) were isolated from local iron sand to provide magnetic properties of chitosan. Glutaraldehyde was used as crosslinking agent of chitosan. The obtained magnetic chitosan was characterized by using FTIR, TGA, DSC, XRD, and SEM. Adsorption experiments were conducted with various contact time, pH and initial concentration of mercury. The results showed glutaraldehyde and Fe(3)O(4) decreased crystallinity of chitosan. Low crystallinity of polymer is favorable for adsorption due to the high accessibility of adsorbate to reach active sites of adsorbent. FTIR and SEM confirmed the formation of magnetic chitosan. Based on correlation coefficient (R(2)) values, the adsorption mercury by magnetic chitosan fitted with Langmuir and Freundlich isotherm models.
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spelling pubmed-65262332019-05-28 Preparation of magnetic chitosan using local iron sand for mercury removal Rahmi Fathurrahmi Lelifajri PurnamaWati, Fitri Heliyon Article Preparation of magnetic chitosan for mercury removal from polluted water had been conducted. Magnetic particles (Fe(3)O(4)) were isolated from local iron sand to provide magnetic properties of chitosan. Glutaraldehyde was used as crosslinking agent of chitosan. The obtained magnetic chitosan was characterized by using FTIR, TGA, DSC, XRD, and SEM. Adsorption experiments were conducted with various contact time, pH and initial concentration of mercury. The results showed glutaraldehyde and Fe(3)O(4) decreased crystallinity of chitosan. Low crystallinity of polymer is favorable for adsorption due to the high accessibility of adsorbate to reach active sites of adsorbent. FTIR and SEM confirmed the formation of magnetic chitosan. Based on correlation coefficient (R(2)) values, the adsorption mercury by magnetic chitosan fitted with Langmuir and Freundlich isotherm models. Elsevier 2019-05-17 /pmc/articles/PMC6526233/ /pubmed/31193365 http://dx.doi.org/10.1016/j.heliyon.2019.e01731 Text en © 2019 Published by Elsevier Ltd. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Rahmi
Fathurrahmi
Lelifajri
PurnamaWati, Fitri
Preparation of magnetic chitosan using local iron sand for mercury removal
title Preparation of magnetic chitosan using local iron sand for mercury removal
title_full Preparation of magnetic chitosan using local iron sand for mercury removal
title_fullStr Preparation of magnetic chitosan using local iron sand for mercury removal
title_full_unstemmed Preparation of magnetic chitosan using local iron sand for mercury removal
title_short Preparation of magnetic chitosan using local iron sand for mercury removal
title_sort preparation of magnetic chitosan using local iron sand for mercury removal
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6526233/
https://www.ncbi.nlm.nih.gov/pubmed/31193365
http://dx.doi.org/10.1016/j.heliyon.2019.e01731
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AT lelifajri preparationofmagneticchitosanusinglocalironsandformercuryremoval
AT purnamawatifitri preparationofmagneticchitosanusinglocalironsandformercuryremoval

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