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Functional Chitosan Derivative and Chitin as Decolorization Materials for Methylene Blue and Methyl Orange from Aqueous Solution
Dyes are classified as one of the major pollutants of water. They have negative impacts not only on environment but also on human health. In fact, wastewater that contains these harmful substances requires many types of treatments. Therefore, alternative methods and adsorption agents are needed. Her...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6384594/ https://www.ncbi.nlm.nih.gov/pubmed/30682774 http://dx.doi.org/10.3390/ma12030361 |
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author | Labidi, Abdelkader Salaberria, Asier M. Fernandes, Susana C. M. Labidi, Jalel Abderrabba, Manef |
author_facet | Labidi, Abdelkader Salaberria, Asier M. Fernandes, Susana C. M. Labidi, Jalel Abderrabba, Manef |
author_sort | Labidi, Abdelkader |
collection | PubMed |
description | Dyes are classified as one of the major pollutants of water. They have negative impacts not only on environment but also on human health. In fact, wastewater that contains these harmful substances requires many types of treatments. Therefore, alternative methods and adsorption agents are needed. Herein, we propose to evaluate the decolorization of methylene blue (MB) and methyl orange (MO) as two models of soluble dyes from water using chitin and chitosan-graft-polyacrylamide. Furthermore, the applicability of these biomacromolecules as alternative adsorption agents, their sticking probability and desorption were also examined. Experimental parameters such as dye concentration, contact time, pH solution, adsorbent dosage and temperature were thoroughly examined for the grafted chitosan and chitin. The activation energy ([Formula: see text]) and the thermodynamic variables (i.e., standard Gibb’s free energy ([Formula: see text]), standard enthalpy ([Formula: see text]), and standard entropy ([Formula: see text])) were determined using the Van’t Hoff and Arrhenius equations. The sticking probability ([Formula: see text] *) model for MB and MO removal by chitin and the chitosan derivative demonstrated that both dyes were successfully removed under the proposed conditions. Desorption studies of MB and MO showed the reusability of both materials, suggesting their application for removing dyes from aqueous solution. |
format | Online Article Text |
id | pubmed-6384594 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63845942019-02-23 Functional Chitosan Derivative and Chitin as Decolorization Materials for Methylene Blue and Methyl Orange from Aqueous Solution Labidi, Abdelkader Salaberria, Asier M. Fernandes, Susana C. M. Labidi, Jalel Abderrabba, Manef Materials (Basel) Article Dyes are classified as one of the major pollutants of water. They have negative impacts not only on environment but also on human health. In fact, wastewater that contains these harmful substances requires many types of treatments. Therefore, alternative methods and adsorption agents are needed. Herein, we propose to evaluate the decolorization of methylene blue (MB) and methyl orange (MO) as two models of soluble dyes from water using chitin and chitosan-graft-polyacrylamide. Furthermore, the applicability of these biomacromolecules as alternative adsorption agents, their sticking probability and desorption were also examined. Experimental parameters such as dye concentration, contact time, pH solution, adsorbent dosage and temperature were thoroughly examined for the grafted chitosan and chitin. The activation energy ([Formula: see text]) and the thermodynamic variables (i.e., standard Gibb’s free energy ([Formula: see text]), standard enthalpy ([Formula: see text]), and standard entropy ([Formula: see text])) were determined using the Van’t Hoff and Arrhenius equations. The sticking probability ([Formula: see text] *) model for MB and MO removal by chitin and the chitosan derivative demonstrated that both dyes were successfully removed under the proposed conditions. Desorption studies of MB and MO showed the reusability of both materials, suggesting their application for removing dyes from aqueous solution. MDPI 2019-01-24 /pmc/articles/PMC6384594/ /pubmed/30682774 http://dx.doi.org/10.3390/ma12030361 Text en © 2019 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 Labidi, Abdelkader Salaberria, Asier M. Fernandes, Susana C. M. Labidi, Jalel Abderrabba, Manef Functional Chitosan Derivative and Chitin as Decolorization Materials for Methylene Blue and Methyl Orange from Aqueous Solution |
title | Functional Chitosan Derivative and Chitin as Decolorization Materials for Methylene Blue and Methyl Orange from Aqueous Solution |
title_full | Functional Chitosan Derivative and Chitin as Decolorization Materials for Methylene Blue and Methyl Orange from Aqueous Solution |
title_fullStr | Functional Chitosan Derivative and Chitin as Decolorization Materials for Methylene Blue and Methyl Orange from Aqueous Solution |
title_full_unstemmed | Functional Chitosan Derivative and Chitin as Decolorization Materials for Methylene Blue and Methyl Orange from Aqueous Solution |
title_short | Functional Chitosan Derivative and Chitin as Decolorization Materials for Methylene Blue and Methyl Orange from Aqueous Solution |
title_sort | functional chitosan derivative and chitin as decolorization materials for methylene blue and methyl orange from aqueous solution |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6384594/ https://www.ncbi.nlm.nih.gov/pubmed/30682774 http://dx.doi.org/10.3390/ma12030361 |
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