Cargando…
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...
Autores principales: | , , , |
---|---|
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 |
_version_ | 1784702109970595840 |
---|---|
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. |
format | Online Article Text |
id | pubmed-9077392 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT zhuhaotian adsorptionoftetracyclineantibioticsfromanaqueoussolutionontographeneoxidecalciumalginatecompositefibers AT chentao adsorptionoftetracyclineantibioticsfromanaqueoussolutionontographeneoxidecalciumalginatecompositefibers AT liujingquan adsorptionoftetracyclineantibioticsfromanaqueoussolutionontographeneoxidecalciumalginatecompositefibers AT lida adsorptionoftetracyclineantibioticsfromanaqueoussolutionontographeneoxidecalciumalginatecompositefibers |