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Adsorption of Sb (III) on Oxidized Exfoliated Graphite Nanoplatelets
In this work, Sb (III) adsorption on oxidized exfoliated graphite nanoplatelets (ox-xGnP) was evaluated for the first time, to the best of our knowledge. The ox-xGnP were characterized by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), Brunauer–Emmet–Teller (BET) a...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6315594/ https://www.ncbi.nlm.nih.gov/pubmed/30513681 http://dx.doi.org/10.3390/nano8120992 |
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author | Capra, Luiza Manolache, Mihaela Ion, Ion Stoica, Rusandica Stinga, Gabriela Doncea, Sanda Maria Alexandrescu, Elvira Somoghi, Raluca Calin, Marian Romeo Radulescu, Ileana Ivan, Georgeta Ramona Deaconu, Marian Ion, Alina Catrinel |
author_facet | Capra, Luiza Manolache, Mihaela Ion, Ion Stoica, Rusandica Stinga, Gabriela Doncea, Sanda Maria Alexandrescu, Elvira Somoghi, Raluca Calin, Marian Romeo Radulescu, Ileana Ivan, Georgeta Ramona Deaconu, Marian Ion, Alina Catrinel |
author_sort | Capra, Luiza |
collection | PubMed |
description | In this work, Sb (III) adsorption on oxidized exfoliated graphite nanoplatelets (ox-xGnP) was evaluated for the first time, to the best of our knowledge. The ox-xGnP were characterized by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), Brunauer–Emmet–Teller (BET) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM) equipped with energy-dispersive X-ray spectroscopy (EDX), and Zeta potential analysis. The adsorption parameters, such as pH and contact time, were optimized, and the best adsorption capacity obtained was 8.91 mg g(−1) at pH = 7.0, 1.0 mg ox-xGnP/100 mL solution, T = 293 K, 1.0 mg L(−1), Sb (III), 25 min contact time. The best correlation of the kinetic data was described by a pseudo-first-order kinetic model, with R(2) = 0.999. The adsorption isotherms of Sb (III) onto ox-xGnP were best described by the Langmuir isotherm model. The thermodynamic parameters showed that the adsorption process was exothermic and spontaneous. |
format | Online Article Text |
id | pubmed-6315594 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63155942019-01-10 Adsorption of Sb (III) on Oxidized Exfoliated Graphite Nanoplatelets Capra, Luiza Manolache, Mihaela Ion, Ion Stoica, Rusandica Stinga, Gabriela Doncea, Sanda Maria Alexandrescu, Elvira Somoghi, Raluca Calin, Marian Romeo Radulescu, Ileana Ivan, Georgeta Ramona Deaconu, Marian Ion, Alina Catrinel Nanomaterials (Basel) Article In this work, Sb (III) adsorption on oxidized exfoliated graphite nanoplatelets (ox-xGnP) was evaluated for the first time, to the best of our knowledge. The ox-xGnP were characterized by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), Brunauer–Emmet–Teller (BET) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM) equipped with energy-dispersive X-ray spectroscopy (EDX), and Zeta potential analysis. The adsorption parameters, such as pH and contact time, were optimized, and the best adsorption capacity obtained was 8.91 mg g(−1) at pH = 7.0, 1.0 mg ox-xGnP/100 mL solution, T = 293 K, 1.0 mg L(−1), Sb (III), 25 min contact time. The best correlation of the kinetic data was described by a pseudo-first-order kinetic model, with R(2) = 0.999. The adsorption isotherms of Sb (III) onto ox-xGnP were best described by the Langmuir isotherm model. The thermodynamic parameters showed that the adsorption process was exothermic and spontaneous. MDPI 2018-11-30 /pmc/articles/PMC6315594/ /pubmed/30513681 http://dx.doi.org/10.3390/nano8120992 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Capra, Luiza Manolache, Mihaela Ion, Ion Stoica, Rusandica Stinga, Gabriela Doncea, Sanda Maria Alexandrescu, Elvira Somoghi, Raluca Calin, Marian Romeo Radulescu, Ileana Ivan, Georgeta Ramona Deaconu, Marian Ion, Alina Catrinel Adsorption of Sb (III) on Oxidized Exfoliated Graphite Nanoplatelets |
title | Adsorption of Sb (III) on Oxidized Exfoliated Graphite Nanoplatelets |
title_full | Adsorption of Sb (III) on Oxidized Exfoliated Graphite Nanoplatelets |
title_fullStr | Adsorption of Sb (III) on Oxidized Exfoliated Graphite Nanoplatelets |
title_full_unstemmed | Adsorption of Sb (III) on Oxidized Exfoliated Graphite Nanoplatelets |
title_short | Adsorption of Sb (III) on Oxidized Exfoliated Graphite Nanoplatelets |
title_sort | adsorption of sb (iii) on oxidized exfoliated graphite nanoplatelets |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6315594/ https://www.ncbi.nlm.nih.gov/pubmed/30513681 http://dx.doi.org/10.3390/nano8120992 |
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