Molecular separation of ions from aqueous solutions using modified nanocomposites

Abstract Herein, two novel porous polymer matrix nanocomposites were synthesized and used as adsorbents for heavy metal uptake. Methacrylate-modified large mesoporous silica FDU-12 was incorporated in poly(methyl methacrylate) matrix through an in-situ polymerization approach. For another, amine-mod...

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Autores principales:	Hamed Ghaforinejad, Azam Marjani, Hossein Mazaheri, Ali Hassani Joshaghani
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ca2e44df3d424ac585bfd08f9fe5c9cf
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spelling	oai:doaj.org-article:ca2e44df3d424ac585bfd08f9fe5c9cf2021-12-02T18:18:44ZMolecular separation of ions from aqueous solutions using modified nanocomposites10.1038/s41598-021-89371-52045-2322https://doaj.org/article/ca2e44df3d424ac585bfd08f9fe5c9cf2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89371-5https://doaj.org/toc/2045-2322Abstract Herein, two novel porous polymer matrix nanocomposites were synthesized and used as adsorbents for heavy metal uptake. Methacrylate-modified large mesoporous silica FDU-12 was incorporated in poly(methyl methacrylate) matrix through an in-situ polymerization approach. For another, amine-modified FDU-12 was composited with Nylon 6,6 via a facile solution blending protocol. Various characterization techniques including small-angle X-ray scattering, FTIR spectroscopy, field emission-scanning electron microscopy, transmission electron microscopy, porosimetry, and thermogravimetric analysis have been applied to investigate the physical and chemical properties of the prepared materials. The adsorption of Pb(II) onto the synthesized nanocomposites was studied in a batch system. After study the effect of solution pH, adsorbent amount, contact time, and initial concentration of metal ion on the adsorption process, kinetic studies were also conducted. For both adsorbents, the Langmuir and pseudo-second-order models were found to be the best fit to predict isotherm and kinetics of adsorption. Based on the Langmuir model, maximum adsorption capacities of 105.3 and 109.9 mg g−1 were obtained for methacrylate-modified FDU-12/poly(methyl methacrylate) and amine-modified FDU-12/Nylon 6,6, respectively.Hamed GhaforinejadAzam MarjaniHossein MazaheriAli Hassani JoshaghaniNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hamed Ghaforinejad Azam Marjani Hossein Mazaheri Ali Hassani Joshaghani Molecular separation of ions from aqueous solutions using modified nanocomposites
description	Abstract Herein, two novel porous polymer matrix nanocomposites were synthesized and used as adsorbents for heavy metal uptake. Methacrylate-modified large mesoporous silica FDU-12 was incorporated in poly(methyl methacrylate) matrix through an in-situ polymerization approach. For another, amine-modified FDU-12 was composited with Nylon 6,6 via a facile solution blending protocol. Various characterization techniques including small-angle X-ray scattering, FTIR spectroscopy, field emission-scanning electron microscopy, transmission electron microscopy, porosimetry, and thermogravimetric analysis have been applied to investigate the physical and chemical properties of the prepared materials. The adsorption of Pb(II) onto the synthesized nanocomposites was studied in a batch system. After study the effect of solution pH, adsorbent amount, contact time, and initial concentration of metal ion on the adsorption process, kinetic studies were also conducted. For both adsorbents, the Langmuir and pseudo-second-order models were found to be the best fit to predict isotherm and kinetics of adsorption. Based on the Langmuir model, maximum adsorption capacities of 105.3 and 109.9 mg g−1 were obtained for methacrylate-modified FDU-12/poly(methyl methacrylate) and amine-modified FDU-12/Nylon 6,6, respectively.
format	article
author	Hamed Ghaforinejad Azam Marjani Hossein Mazaheri Ali Hassani Joshaghani
author_facet	Hamed Ghaforinejad Azam Marjani Hossein Mazaheri Ali Hassani Joshaghani
author_sort	Hamed Ghaforinejad
title	Molecular separation of ions from aqueous solutions using modified nanocomposites
title_short	Molecular separation of ions from aqueous solutions using modified nanocomposites
title_full	Molecular separation of ions from aqueous solutions using modified nanocomposites
title_fullStr	Molecular separation of ions from aqueous solutions using modified nanocomposites
title_full_unstemmed	Molecular separation of ions from aqueous solutions using modified nanocomposites
title_sort	molecular separation of ions from aqueous solutions using modified nanocomposites
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ca2e44df3d424ac585bfd08f9fe5c9cf
work_keys_str_mv	AT hamedghaforinejad molecularseparationofionsfromaqueoussolutionsusingmodifiednanocomposites AT azammarjani molecularseparationofionsfromaqueoussolutionsusingmodifiednanocomposites AT hosseinmazaheri molecularseparationofionsfromaqueoussolutionsusingmodifiednanocomposites AT alihassanijoshaghani molecularseparationofionsfromaqueoussolutionsusingmodifiednanocomposites
_version_	1718378243121217536

Molecular separation of ions from aqueous solutions using modified nanocomposites

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