Preparation of polydopamine-coated graphene oxide/Fe3O4 imprinted nanoparticles for selective removal of fluoroquinolone antibiotics in water

Abstract Antibiotics in water have recently caused increasing concerns for public health and ecological environments. In this work, we demonstrated polydopamine-coated graphene oxide/Fe3O4 (PDA@GO/Fe3O4) imprinted nanoparticles coupled with magnetic separation for fast and selective removal of fluor...

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Autores principales:	Feng Tan, Min Liu, Suyu Ren
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/29b01a54c6d44faa9b75e83c28713b9c
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spelling	oai:doaj.org-article:29b01a54c6d44faa9b75e83c28713b9c2021-12-02T12:32:50ZPreparation of polydopamine-coated graphene oxide/Fe3O4 imprinted nanoparticles for selective removal of fluoroquinolone antibiotics in water10.1038/s41598-017-06303-y2045-2322https://doaj.org/article/29b01a54c6d44faa9b75e83c28713b9c2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06303-yhttps://doaj.org/toc/2045-2322Abstract Antibiotics in water have recently caused increasing concerns for public health and ecological environments. In this work, we demonstrated polydopamine-coated graphene oxide/Fe3O4 (PDA@GO/Fe3O4) imprinted nanoparticles coupled with magnetic separation for fast and selective removal of fluoroquinolone antibiotics in water. The nanoparticles were prepared by the self-polymerization of dopamine using sarafloxacin as a template. The imprinted PDA film of 10~20 nm uniformly covered the surface of GO/Fe3O4 providing selective binding sites. The nanoparticles showed rapid binding and a large capacity (70.9 mg/g). The adsorption data fitted well the Langmuir and pseudo-second order kinetic equations. The nanoparticles could be easily separated by a magnet following the adsorption and then regenerated by simple washing for repetitive adsorptions. The nanoparticles were successfully used for the removal of fluoroquinolone antibiotics in seawater, with removal efficiencies of more than 95%. The proposed strategy has potentials for efficient removal of antibiotics in environmental water.Feng TanMin LiuSuyu RenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Feng Tan Min Liu Suyu Ren Preparation of polydopamine-coated graphene oxide/Fe3O4 imprinted nanoparticles for selective removal of fluoroquinolone antibiotics in water
description	Abstract Antibiotics in water have recently caused increasing concerns for public health and ecological environments. In this work, we demonstrated polydopamine-coated graphene oxide/Fe3O4 (PDA@GO/Fe3O4) imprinted nanoparticles coupled with magnetic separation for fast and selective removal of fluoroquinolone antibiotics in water. The nanoparticles were prepared by the self-polymerization of dopamine using sarafloxacin as a template. The imprinted PDA film of 10~20 nm uniformly covered the surface of GO/Fe3O4 providing selective binding sites. The nanoparticles showed rapid binding and a large capacity (70.9 mg/g). The adsorption data fitted well the Langmuir and pseudo-second order kinetic equations. The nanoparticles could be easily separated by a magnet following the adsorption and then regenerated by simple washing for repetitive adsorptions. The nanoparticles were successfully used for the removal of fluoroquinolone antibiotics in seawater, with removal efficiencies of more than 95%. The proposed strategy has potentials for efficient removal of antibiotics in environmental water.
format	article
author	Feng Tan Min Liu Suyu Ren
author_facet	Feng Tan Min Liu Suyu Ren
author_sort	Feng Tan
title	Preparation of polydopamine-coated graphene oxide/Fe3O4 imprinted nanoparticles for selective removal of fluoroquinolone antibiotics in water
title_short	Preparation of polydopamine-coated graphene oxide/Fe3O4 imprinted nanoparticles for selective removal of fluoroquinolone antibiotics in water
title_full	Preparation of polydopamine-coated graphene oxide/Fe3O4 imprinted nanoparticles for selective removal of fluoroquinolone antibiotics in water
title_fullStr	Preparation of polydopamine-coated graphene oxide/Fe3O4 imprinted nanoparticles for selective removal of fluoroquinolone antibiotics in water
title_full_unstemmed	Preparation of polydopamine-coated graphene oxide/Fe3O4 imprinted nanoparticles for selective removal of fluoroquinolone antibiotics in water
title_sort	preparation of polydopamine-coated graphene oxide/fe3o4 imprinted nanoparticles for selective removal of fluoroquinolone antibiotics in water
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/29b01a54c6d44faa9b75e83c28713b9c
work_keys_str_mv	AT fengtan preparationofpolydopaminecoatedgrapheneoxidefe3o4imprintednanoparticlesforselectiveremovaloffluoroquinoloneantibioticsinwater AT minliu preparationofpolydopaminecoatedgrapheneoxidefe3o4imprintednanoparticlesforselectiveremovaloffluoroquinoloneantibioticsinwater AT suyuren preparationofpolydopaminecoatedgrapheneoxidefe3o4imprintednanoparticlesforselectiveremovaloffluoroquinoloneantibioticsinwater
_version_	1718393908133625856

Preparation of polydopamine-coated graphene oxide/Fe3O4 imprinted nanoparticles for selective removal of fluoroquinolone antibiotics in water

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