Facile fabrication of superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for fast magnetic separation and efficient removal of dye

Abstract Using graphene as adsorbent for removal of pollutants from polluted water is commonly recognized to be costly because the graphene is usually produced by a very complex process. Herein, a simple and eco-friendly method was employed to fabricate efficient superparamagnetic graphene/polyanili...

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Autores principales:	Bin Mu, Jie Tang, Long Zhang, Aiqin Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2d2db8d3cdc74657a21d4991ec7e8cd8
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spelling	oai:doaj.org-article:2d2db8d3cdc74657a21d4991ec7e8cd82021-12-02T16:08:12ZFacile fabrication of superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for fast magnetic separation and efficient removal of dye10.1038/s41598-017-05755-62045-2322https://doaj.org/article/2d2db8d3cdc74657a21d4991ec7e8cd82017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05755-6https://doaj.org/toc/2045-2322Abstract Using graphene as adsorbent for removal of pollutants from polluted water is commonly recognized to be costly because the graphene is usually produced by a very complex process. Herein, a simple and eco-friendly method was employed to fabricate efficient superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for removal of dyes. The exfoliation of graphite as nanosheets and the functionalization of nanosheets with polyaniline and Fe3O4 nanoparticles were simultaneously achieved via a one-pot reaction process combining the intercalation polymerization of aniline and the co-precipitation of the residual Fe3+ and the generated Fe2+. The obtained graphene/polyaniline/Fe3O4 nanocomposites exhibited excellent adsorption performance for Congo red, even in the presence of Brilliant green. The adsorption kinetics and adsorption isotherms were well fitted with pseudo second-order kinetic model and Langmuir isotherm model, respectively. In a word, this method is simple and industrially feasible, which provides a new approach to fabricate highly efficient graphene-based adsorbents on large scale for removal of dyes. In addition, it also can be used to exfoliate other two-dimensional materials, such as boron nitride, carbon nitride and MoS2 for a range of possible applications.Bin MuJie TangLong ZhangAiqin WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bin Mu Jie Tang Long Zhang Aiqin Wang Facile fabrication of superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for fast magnetic separation and efficient removal of dye
description	Abstract Using graphene as adsorbent for removal of pollutants from polluted water is commonly recognized to be costly because the graphene is usually produced by a very complex process. Herein, a simple and eco-friendly method was employed to fabricate efficient superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for removal of dyes. The exfoliation of graphite as nanosheets and the functionalization of nanosheets with polyaniline and Fe3O4 nanoparticles were simultaneously achieved via a one-pot reaction process combining the intercalation polymerization of aniline and the co-precipitation of the residual Fe3+ and the generated Fe2+. The obtained graphene/polyaniline/Fe3O4 nanocomposites exhibited excellent adsorption performance for Congo red, even in the presence of Brilliant green. The adsorption kinetics and adsorption isotherms were well fitted with pseudo second-order kinetic model and Langmuir isotherm model, respectively. In a word, this method is simple and industrially feasible, which provides a new approach to fabricate highly efficient graphene-based adsorbents on large scale for removal of dyes. In addition, it also can be used to exfoliate other two-dimensional materials, such as boron nitride, carbon nitride and MoS2 for a range of possible applications.
format	article
author	Bin Mu Jie Tang Long Zhang Aiqin Wang
author_facet	Bin Mu Jie Tang Long Zhang Aiqin Wang
author_sort	Bin Mu
title	Facile fabrication of superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for fast magnetic separation and efficient removal of dye
title_short	Facile fabrication of superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for fast magnetic separation and efficient removal of dye
title_full	Facile fabrication of superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for fast magnetic separation and efficient removal of dye
title_fullStr	Facile fabrication of superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for fast magnetic separation and efficient removal of dye
title_full_unstemmed	Facile fabrication of superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for fast magnetic separation and efficient removal of dye
title_sort	facile fabrication of superparamagnetic graphene/polyaniline/fe3o4 nanocomposites for fast magnetic separation and efficient removal of dye
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/2d2db8d3cdc74657a21d4991ec7e8cd8
work_keys_str_mv	AT binmu facilefabricationofsuperparamagneticgraphenepolyanilinefe3o4nanocompositesforfastmagneticseparationandefficientremovalofdye AT jietang facilefabricationofsuperparamagneticgraphenepolyanilinefe3o4nanocompositesforfastmagneticseparationandefficientremovalofdye AT longzhang facilefabricationofsuperparamagneticgraphenepolyanilinefe3o4nanocompositesforfastmagneticseparationandefficientremovalofdye AT aiqinwang facilefabricationofsuperparamagneticgraphenepolyanilinefe3o4nanocompositesforfastmagneticseparationandefficientremovalofdye
_version_	1718384584072101888

Facile fabrication of superparamagnetic graphene/polyaniline/Fe3O4 nanocomposites for fast magnetic separation and efficient removal of dye

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