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Removal of crystal violet from water by magnetically modified activated carbon and nanomagnetic iron oxide
Magnetically modified activated carbon, which synthesized by nanomagnetic iron oxide, was used for fast and effective removal of Crystal Violet from aqueous solutions. The scanning electron microscopy (SEM) images of nano-adsorbent showed that the average sizes of adsorbent are less than 100 nm. The...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4333261/ https://www.ncbi.nlm.nih.gov/pubmed/25699186 http://dx.doi.org/10.1186/s40201-015-0156-4 |
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author | Hamidzadeh, Soheila Torabbeigi, Marzieh Shahtaheri, Seyed Jamaleddin |
author_facet | Hamidzadeh, Soheila Torabbeigi, Marzieh Shahtaheri, Seyed Jamaleddin |
author_sort | Hamidzadeh, Soheila |
collection | PubMed |
description | Magnetically modified activated carbon, which synthesized by nanomagnetic iron oxide, was used for fast and effective removal of Crystal Violet from aqueous solutions. The scanning electron microscopy (SEM) images of nano-adsorbent showed that the average sizes of adsorbent are less than 100 nm. The various parameters, affecting on adsorption process, were examined including pH and temperature of dye solution, dose of adsorbent, and contact time. Then, thermodynamic parameters of sorption were calculated. Langmuir and Freundlich isotherms were used to fit the resulting data. Adsorption kinetics was consistent with a pseudo second order equation. Thermodynamic parameters of adsorption, ∆H(0), and ∆S(0) were calculated. Also, for further investigations, nano magnetic iron oxides was synthesized and used as adsorbent. Sorption capacities were depending on the temperature varied from 44.7 to 67.1 mg/g and from 12.7 to 16.5 mg/g for magnetically modified activated carbon and nanomagnetic iron oxide, respectively. |
format | Online Article Text |
id | pubmed-4333261 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-43332612015-02-20 Removal of crystal violet from water by magnetically modified activated carbon and nanomagnetic iron oxide Hamidzadeh, Soheila Torabbeigi, Marzieh Shahtaheri, Seyed Jamaleddin J Environ Health Sci Eng Research Article Magnetically modified activated carbon, which synthesized by nanomagnetic iron oxide, was used for fast and effective removal of Crystal Violet from aqueous solutions. The scanning electron microscopy (SEM) images of nano-adsorbent showed that the average sizes of adsorbent are less than 100 nm. The various parameters, affecting on adsorption process, were examined including pH and temperature of dye solution, dose of adsorbent, and contact time. Then, thermodynamic parameters of sorption were calculated. Langmuir and Freundlich isotherms were used to fit the resulting data. Adsorption kinetics was consistent with a pseudo second order equation. Thermodynamic parameters of adsorption, ∆H(0), and ∆S(0) were calculated. Also, for further investigations, nano magnetic iron oxides was synthesized and used as adsorbent. Sorption capacities were depending on the temperature varied from 44.7 to 67.1 mg/g and from 12.7 to 16.5 mg/g for magnetically modified activated carbon and nanomagnetic iron oxide, respectively. BioMed Central 2015-01-31 /pmc/articles/PMC4333261/ /pubmed/25699186 http://dx.doi.org/10.1186/s40201-015-0156-4 Text en © Hamidzadeh et al.; licensee BioMed Central. 2015 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 credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Hamidzadeh, Soheila Torabbeigi, Marzieh Shahtaheri, Seyed Jamaleddin Removal of crystal violet from water by magnetically modified activated carbon and nanomagnetic iron oxide |
title | Removal of crystal violet from water by magnetically modified activated carbon and nanomagnetic iron oxide |
title_full | Removal of crystal violet from water by magnetically modified activated carbon and nanomagnetic iron oxide |
title_fullStr | Removal of crystal violet from water by magnetically modified activated carbon and nanomagnetic iron oxide |
title_full_unstemmed | Removal of crystal violet from water by magnetically modified activated carbon and nanomagnetic iron oxide |
title_short | Removal of crystal violet from water by magnetically modified activated carbon and nanomagnetic iron oxide |
title_sort | removal of crystal violet from water by magnetically modified activated carbon and nanomagnetic iron oxide |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4333261/ https://www.ncbi.nlm.nih.gov/pubmed/25699186 http://dx.doi.org/10.1186/s40201-015-0156-4 |
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