Thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for Hg(2+) removal

A thiol-functionalized magnetite/graphene oxide (MGO) hybrid as an adsorbent of Hg(2+) was successfully synthesized by a two-step reaction. It exhibited a higher adsorption capacity compared to the bare graphene oxide and MGO due to the combined adsorption of thiol groups and magnetite nanocrystals....

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Detalles Bibliográficos
Autores principales: Bao, Jian, Fu, You, Bao, Zhihao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2013
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3842736/
https://www.ncbi.nlm.nih.gov/pubmed/24252617
http://dx.doi.org/10.1186/1556-276X-8-486
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author Bao, Jian
Fu, You
Bao, Zhihao
author_facet Bao, Jian
Fu, You
Bao, Zhihao
author_sort Bao, Jian
collection PubMed
description A thiol-functionalized magnetite/graphene oxide (MGO) hybrid as an adsorbent of Hg(2+) was successfully synthesized by a two-step reaction. It exhibited a higher adsorption capacity compared to the bare graphene oxide and MGO due to the combined adsorption of thiol groups and magnetite nanocrystals. Its capacity reached 289.9 mg g(-1) in a solution with an initial Hg(2+) concentration of 100 mg l(-1). After being exchanged with H(+), the adsorbent could be reused. The adsorption of Hg(2+) by the thiol-functionalized MGO fits well with the Freundlich isotherm model and followed pseudo-second-order kinetics.
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spelling pubmed-38427362013-12-03 Thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for Hg(2+) removal Bao, Jian Fu, You Bao, Zhihao Nanoscale Res Lett Nano Express A thiol-functionalized magnetite/graphene oxide (MGO) hybrid as an adsorbent of Hg(2+) was successfully synthesized by a two-step reaction. It exhibited a higher adsorption capacity compared to the bare graphene oxide and MGO due to the combined adsorption of thiol groups and magnetite nanocrystals. Its capacity reached 289.9 mg g(-1) in a solution with an initial Hg(2+) concentration of 100 mg l(-1). After being exchanged with H(+), the adsorbent could be reused. The adsorption of Hg(2+) by the thiol-functionalized MGO fits well with the Freundlich isotherm model and followed pseudo-second-order kinetics. Springer 2013-11-19 /pmc/articles/PMC3842736/ /pubmed/24252617 http://dx.doi.org/10.1186/1556-276X-8-486 Text en Copyright © 2013 Bao et al.; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Bao, Jian
Fu, You
Bao, Zhihao
Thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for Hg(2+) removal
title Thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for Hg(2+) removal
title_full Thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for Hg(2+) removal
title_fullStr Thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for Hg(2+) removal
title_full_unstemmed Thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for Hg(2+) removal
title_short Thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for Hg(2+) removal
title_sort thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for hg(2+) removal
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3842736/
https://www.ncbi.nlm.nih.gov/pubmed/24252617
http://dx.doi.org/10.1186/1556-276X-8-486
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AT baozhihao thiolfunctionalizedmagnetitegrapheneoxidehybridasareusableadsorbentforhg2removal

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