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Adsorptive Removal and Adsorption Kinetics of Fluoroquinolone by Nano-Hydroxyapatite
Various kinds of antibiotics, especially fluoroquinolone antibiotics (FQs) have been widely used for the therapy of infectious diseases in human and livestock. For their poorly absorbed by living organisms, large-scale misuse or abuse of FQs will foster drug resistance among pathogenic bacteria, as...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4689473/ https://www.ncbi.nlm.nih.gov/pubmed/26698573 http://dx.doi.org/10.1371/journal.pone.0145025 |
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author | Chen, Yajun Lan, Tao Duan, Lunchao Wang, Fenghe Zhao, Bin Zhang, Shengtian Wei, Wei |
author_facet | Chen, Yajun Lan, Tao Duan, Lunchao Wang, Fenghe Zhao, Bin Zhang, Shengtian Wei, Wei |
author_sort | Chen, Yajun |
collection | PubMed |
description | Various kinds of antibiotics, especially fluoroquinolone antibiotics (FQs) have been widely used for the therapy of infectious diseases in human and livestock. For their poorly absorbed by living organisms, large-scale misuse or abuse of FQs will foster drug resistance among pathogenic bacteria, as well as a variety of environmental problems when they were released in the environment. In this work, the adsorption properties of two FQs, namely norfloxacin (NOR) and ciprofloxacin (CIP), by nano-hydroxyapatite (n-HAP) were studied by batch adsorption experiments. The adsorption curves of FQs by n-HAP were simulated by Langmuir and Freundlich isotherms. The results shown that NOR and CIP can be adsorbed effectively by the adsorbent of n-HAP, and the adsorption capacity of FQs increase with increasing dosage of n-HAP. The optimum dosage of n-HAP for FQs removal was 20 g·L(-1), in which the removal efficiencies is 51.6% and 47.3%, and an adsorption equilibrium time is 20 min. The maximum removal efficiency occurred when pH is 6 for both FQs. The adsorption isotherm of FQs fits well for both Langmuir and Freundlich equations. The adsorption of both FQs by n-HAP follows second-order kinetics. |
format | Online Article Text |
id | pubmed-4689473 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-46894732015-12-31 Adsorptive Removal and Adsorption Kinetics of Fluoroquinolone by Nano-Hydroxyapatite Chen, Yajun Lan, Tao Duan, Lunchao Wang, Fenghe Zhao, Bin Zhang, Shengtian Wei, Wei PLoS One Research Article Various kinds of antibiotics, especially fluoroquinolone antibiotics (FQs) have been widely used for the therapy of infectious diseases in human and livestock. For their poorly absorbed by living organisms, large-scale misuse or abuse of FQs will foster drug resistance among pathogenic bacteria, as well as a variety of environmental problems when they were released in the environment. In this work, the adsorption properties of two FQs, namely norfloxacin (NOR) and ciprofloxacin (CIP), by nano-hydroxyapatite (n-HAP) were studied by batch adsorption experiments. The adsorption curves of FQs by n-HAP were simulated by Langmuir and Freundlich isotherms. The results shown that NOR and CIP can be adsorbed effectively by the adsorbent of n-HAP, and the adsorption capacity of FQs increase with increasing dosage of n-HAP. The optimum dosage of n-HAP for FQs removal was 20 g·L(-1), in which the removal efficiencies is 51.6% and 47.3%, and an adsorption equilibrium time is 20 min. The maximum removal efficiency occurred when pH is 6 for both FQs. The adsorption isotherm of FQs fits well for both Langmuir and Freundlich equations. The adsorption of both FQs by n-HAP follows second-order kinetics. Public Library of Science 2015-12-23 /pmc/articles/PMC4689473/ /pubmed/26698573 http://dx.doi.org/10.1371/journal.pone.0145025 Text en © 2015 Chen et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Chen, Yajun Lan, Tao Duan, Lunchao Wang, Fenghe Zhao, Bin Zhang, Shengtian Wei, Wei Adsorptive Removal and Adsorption Kinetics of Fluoroquinolone by Nano-Hydroxyapatite |
title | Adsorptive Removal and Adsorption Kinetics of Fluoroquinolone by Nano-Hydroxyapatite |
title_full | Adsorptive Removal and Adsorption Kinetics of Fluoroquinolone by Nano-Hydroxyapatite |
title_fullStr | Adsorptive Removal and Adsorption Kinetics of Fluoroquinolone by Nano-Hydroxyapatite |
title_full_unstemmed | Adsorptive Removal and Adsorption Kinetics of Fluoroquinolone by Nano-Hydroxyapatite |
title_short | Adsorptive Removal and Adsorption Kinetics of Fluoroquinolone by Nano-Hydroxyapatite |
title_sort | adsorptive removal and adsorption kinetics of fluoroquinolone by nano-hydroxyapatite |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4689473/ https://www.ncbi.nlm.nih.gov/pubmed/26698573 http://dx.doi.org/10.1371/journal.pone.0145025 |
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