Recyclable nanoscale zero-valent iron-based magnetic polydopamine coated nanomaterials for the adsorption and removal of phenanthrene and anthracene

In this study, nanoscale zero-valent iron nanoparticles (NZVIs) were coated with silica and polydopamine using a two-step process. The coated nanoparticles were applied as adsorbents for removal of two common polycyclic aromatic hydrocarbons pollutants, phenanthrene (PHE) and anthracene (ANT) from a...

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Autores principales: Li, Jing, Zhou, Qingxiang, Liu, Yongli, Lei, Man
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Taylor & Francis 2017
Materias:
Organic and Soft Materials (Colloids, Liquid Crystals, Gel, Polymers)
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5256256/
https://www.ncbi.nlm.nih.gov/pubmed/28179954
http://dx.doi.org/10.1080/14686996.2016.1246941
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author Li, Jing
Zhou, Qingxiang
Liu, Yongli
Lei, Man
author_facet Li, Jing
Zhou, Qingxiang
Liu, Yongli
Lei, Man
author_sort Li, Jing
collection PubMed
description In this study, nanoscale zero-valent iron nanoparticles (NZVIs) were coated with silica and polydopamine using a two-step process. The coated nanoparticles were applied as adsorbents for removal of two common polycyclic aromatic hydrocarbons pollutants, phenanthrene (PHE) and anthracene (ANT) from aqueous system. Adsorption kinetics followed a pseudo-second-order model. Isotherms and thermodynamics were investigated and the results indicated that the adsorption process fit best to the Freundlich model and exhibited the characteristics of an exothermal physical adsorption process. Owing to their superparamagnetic characteristics and stability, these adsorbents could be easily collected and recycled for reuse.
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spelling pubmed-52562562017-02-08 Recyclable nanoscale zero-valent iron-based magnetic polydopamine coated nanomaterials for the adsorption and removal of phenanthrene and anthracene Li, Jing Zhou, Qingxiang Liu, Yongli Lei, Man Sci Technol Adv Mater Organic and Soft Materials (Colloids, Liquid Crystals, Gel, Polymers) In this study, nanoscale zero-valent iron nanoparticles (NZVIs) were coated with silica and polydopamine using a two-step process. The coated nanoparticles were applied as adsorbents for removal of two common polycyclic aromatic hydrocarbons pollutants, phenanthrene (PHE) and anthracene (ANT) from aqueous system. Adsorption kinetics followed a pseudo-second-order model. Isotherms and thermodynamics were investigated and the results indicated that the adsorption process fit best to the Freundlich model and exhibited the characteristics of an exothermal physical adsorption process. Owing to their superparamagnetic characteristics and stability, these adsorbents could be easily collected and recycled for reuse. Taylor & Francis 2017-01-06 /pmc/articles/PMC5256256/ /pubmed/28179954 http://dx.doi.org/10.1080/14686996.2016.1246941 Text en © 2017 The Author(s). Published by National Institute for Materials Science in partnership with Taylor & Francis http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Organic and Soft Materials (Colloids, Liquid Crystals, Gel, Polymers)
Li, Jing
Zhou, Qingxiang
Liu, Yongli
Lei, Man
Recyclable nanoscale zero-valent iron-based magnetic polydopamine coated nanomaterials for the adsorption and removal of phenanthrene and anthracene
title Recyclable nanoscale zero-valent iron-based magnetic polydopamine coated nanomaterials for the adsorption and removal of phenanthrene and anthracene
title_full Recyclable nanoscale zero-valent iron-based magnetic polydopamine coated nanomaterials for the adsorption and removal of phenanthrene and anthracene
title_fullStr Recyclable nanoscale zero-valent iron-based magnetic polydopamine coated nanomaterials for the adsorption and removal of phenanthrene and anthracene
title_full_unstemmed Recyclable nanoscale zero-valent iron-based magnetic polydopamine coated nanomaterials for the adsorption and removal of phenanthrene and anthracene
title_short Recyclable nanoscale zero-valent iron-based magnetic polydopamine coated nanomaterials for the adsorption and removal of phenanthrene and anthracene
title_sort recyclable nanoscale zero-valent iron-based magnetic polydopamine coated nanomaterials for the adsorption and removal of phenanthrene and anthracene
topic Organic and Soft Materials (Colloids, Liquid Crystals, Gel, Polymers)
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5256256/
https://www.ncbi.nlm.nih.gov/pubmed/28179954
http://dx.doi.org/10.1080/14686996.2016.1246941
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AT liuyongli recyclablenanoscalezerovalentironbasedmagneticpolydopaminecoatednanomaterialsfortheadsorptionandremovalofphenanthreneandanthracene
AT leiman recyclablenanoscalezerovalentironbasedmagneticpolydopaminecoatednanomaterialsfortheadsorptionandremovalofphenanthreneandanthracene

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