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Adsorption of tetracycline antibiotics from an aqueous solution onto graphene oxide/calcium alginate composite fibers

In this study, we report the preparation of a novel environmentally friendly and highly efficient adsorbent, graphene oxide/calcium alginate (GO/CA) composite fibers, via a freeze-drying method using calcium chloride as a cross-linking reagent between graphene oxide and sodium alginate. The maximum...

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Detalles Bibliográficos
Autores principales: Zhu, Haotian, Chen, Tao, Liu, Jingquan, Li, Da
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077392/
https://www.ncbi.nlm.nih.gov/pubmed/35541451
http://dx.doi.org/10.1039/c7ra11964j
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author Zhu, Haotian
Chen, Tao
Liu, Jingquan
Li, Da
author_facet Zhu, Haotian
Chen, Tao
Liu, Jingquan
Li, Da
author_sort Zhu, Haotian
collection PubMed
description In this study, we report the preparation of a novel environmentally friendly and highly efficient adsorbent, graphene oxide/calcium alginate (GO/CA) composite fibers, via a freeze-drying method using calcium chloride as a cross-linking reagent between graphene oxide and sodium alginate. The maximum tetracycline adsorption capacity of the GO/CA composite fibers predicted by the Langmuir model reached 131.6 mg g(−1). The adsorption properties of tetracycline onto the fibers were investigated through several parameters including the solution pH, the adsorbent dose, the initial concentration of tetracycline, and the agitation time. The Langmuir and Freundlich adsorption isotherms were used to investigate the adsorption equilibrium. The kinetics of the adsorption process was predicted using the pseudo-first-order and pseudo-second-order kinetic equations. Furthermore, the mechanism of adsorption was investigated, and it was found that the hydrogen bonding and π–π interaction should serve as predominant contributions to the significantly enhanced adsorption capability.
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spelling pubmed-90773922022-05-09 Adsorption of tetracycline antibiotics from an aqueous solution onto graphene oxide/calcium alginate composite fibers Zhu, Haotian Chen, Tao Liu, Jingquan Li, Da RSC Adv Chemistry In this study, we report the preparation of a novel environmentally friendly and highly efficient adsorbent, graphene oxide/calcium alginate (GO/CA) composite fibers, via a freeze-drying method using calcium chloride as a cross-linking reagent between graphene oxide and sodium alginate. The maximum tetracycline adsorption capacity of the GO/CA composite fibers predicted by the Langmuir model reached 131.6 mg g(−1). The adsorption properties of tetracycline onto the fibers were investigated through several parameters including the solution pH, the adsorbent dose, the initial concentration of tetracycline, and the agitation time. The Langmuir and Freundlich adsorption isotherms were used to investigate the adsorption equilibrium. The kinetics of the adsorption process was predicted using the pseudo-first-order and pseudo-second-order kinetic equations. Furthermore, the mechanism of adsorption was investigated, and it was found that the hydrogen bonding and π–π interaction should serve as predominant contributions to the significantly enhanced adsorption capability. The Royal Society of Chemistry 2018-01-10 /pmc/articles/PMC9077392/ /pubmed/35541451 http://dx.doi.org/10.1039/c7ra11964j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Zhu, Haotian
Chen, Tao
Liu, Jingquan
Li, Da
Adsorption of tetracycline antibiotics from an aqueous solution onto graphene oxide/calcium alginate composite fibers
title Adsorption of tetracycline antibiotics from an aqueous solution onto graphene oxide/calcium alginate composite fibers
title_full Adsorption of tetracycline antibiotics from an aqueous solution onto graphene oxide/calcium alginate composite fibers
title_fullStr Adsorption of tetracycline antibiotics from an aqueous solution onto graphene oxide/calcium alginate composite fibers
title_full_unstemmed Adsorption of tetracycline antibiotics from an aqueous solution onto graphene oxide/calcium alginate composite fibers
title_short Adsorption of tetracycline antibiotics from an aqueous solution onto graphene oxide/calcium alginate composite fibers
title_sort adsorption of tetracycline antibiotics from an aqueous solution onto graphene oxide/calcium alginate composite fibers
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077392/
https://www.ncbi.nlm.nih.gov/pubmed/35541451
http://dx.doi.org/10.1039/c7ra11964j
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