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Surfactant supported chitosan for efficient removal of Cr(VI) and anionic food stuff dyes from aquatic solutions

In order to develop a novel and cost-effective adsorbent with outstanding adsorption capacity and excellent recyclability for anionic pollutants, the chitosan-modified cetyltrimethylammonium bromide sorbent (CS@CTAB) was fabricated. Fourier-transform infrared spectroscopy, N(2) adsorption–desorption...

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Autores principales: Akl, Magda A., Mostafa, Aya G., Abdelaal, Magdy Y., Nour, Mennat Allah K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10517148/
https://www.ncbi.nlm.nih.gov/pubmed/37737297
http://dx.doi.org/10.1038/s41598-023-43034-9
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author Akl, Magda A.
Mostafa, Aya G.
Abdelaal, Magdy Y.
Nour, Mennat Allah K.
author_facet Akl, Magda A.
Mostafa, Aya G.
Abdelaal, Magdy Y.
Nour, Mennat Allah K.
author_sort Akl, Magda A.
collection PubMed
description In order to develop a novel and cost-effective adsorbent with outstanding adsorption capacity and excellent recyclability for anionic pollutants, the chitosan-modified cetyltrimethylammonium bromide sorbent (CS@CTAB) was fabricated. Fourier-transform infrared spectroscopy, N(2) adsorption–desorption isotherm, elemental analysis, Thermogravimetric analysis, X-ray diffraction, and Scanning electron microscopy have been applied to evaluate both raw and surfactant modified chitosan (CS@CTAB). Azorubine, Sunset Yellow, and hexavalent chromium were used to study the adsorption behavior of CS@CTAB under various parameters such as adsorbent dose, initial dye and metal ion concentration, contact time, and temperature. Adsorption equilibrium, kinetics models and thermodynamic parameters were investigated. The adsorption isotherm fitted well with the Langmuir isotherm model, with a maximum adsorption capacity of 492.6 mg/g, 492.6 mg/g, and 490.196 mg/g for Azorubine, Sunset Yellow, and Hexavalent Chromium, respectively. The kinetic studies showed that the pseudo-second-order model provided a better correlation between experimental data. Furthermore, the calculated thermodynamic parameters confirmed that the adsorption of Cr(VI), E110, and E122 by CS@CTAB material is a spontaneous and exothermic process. The fabricated CS@CTAB adsorbent was employed for the efficient elimination of Azorubine, Sunset Yellow, and hexavalent chromium from real water samples, synthetic mixtures, and colored soft drinks, with a percentage of recovery of ~ 96%. The plausible adsorption mechanisms of Azorubine, Sunset Yellow, and hexavalent chromium on the surface of CS@CTAB are elucidated. The adsorption anticipated to be due to electrostatic interaction and hydrogen bond formation for hexavalent chromium; while the adsorption of Azorubine and Sunset Yellow, was assumed to be due to electrostatic interaction, hydrogen bonding, and n-π interaction. Finally, the study demonstrates the efficiency of CS@CTAB for the removal of anionic species from several samples, including natural water and colored beverages.
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spelling pubmed-105171482023-09-24 Surfactant supported chitosan for efficient removal of Cr(VI) and anionic food stuff dyes from aquatic solutions Akl, Magda A. Mostafa, Aya G. Abdelaal, Magdy Y. Nour, Mennat Allah K. Sci Rep Article In order to develop a novel and cost-effective adsorbent with outstanding adsorption capacity and excellent recyclability for anionic pollutants, the chitosan-modified cetyltrimethylammonium bromide sorbent (CS@CTAB) was fabricated. Fourier-transform infrared spectroscopy, N(2) adsorption–desorption isotherm, elemental analysis, Thermogravimetric analysis, X-ray diffraction, and Scanning electron microscopy have been applied to evaluate both raw and surfactant modified chitosan (CS@CTAB). Azorubine, Sunset Yellow, and hexavalent chromium were used to study the adsorption behavior of CS@CTAB under various parameters such as adsorbent dose, initial dye and metal ion concentration, contact time, and temperature. Adsorption equilibrium, kinetics models and thermodynamic parameters were investigated. The adsorption isotherm fitted well with the Langmuir isotherm model, with a maximum adsorption capacity of 492.6 mg/g, 492.6 mg/g, and 490.196 mg/g for Azorubine, Sunset Yellow, and Hexavalent Chromium, respectively. The kinetic studies showed that the pseudo-second-order model provided a better correlation between experimental data. Furthermore, the calculated thermodynamic parameters confirmed that the adsorption of Cr(VI), E110, and E122 by CS@CTAB material is a spontaneous and exothermic process. The fabricated CS@CTAB adsorbent was employed for the efficient elimination of Azorubine, Sunset Yellow, and hexavalent chromium from real water samples, synthetic mixtures, and colored soft drinks, with a percentage of recovery of ~ 96%. The plausible adsorption mechanisms of Azorubine, Sunset Yellow, and hexavalent chromium on the surface of CS@CTAB are elucidated. The adsorption anticipated to be due to electrostatic interaction and hydrogen bond formation for hexavalent chromium; while the adsorption of Azorubine and Sunset Yellow, was assumed to be due to electrostatic interaction, hydrogen bonding, and n-π interaction. Finally, the study demonstrates the efficiency of CS@CTAB for the removal of anionic species from several samples, including natural water and colored beverages. Nature Publishing Group UK 2023-09-22 /pmc/articles/PMC10517148/ /pubmed/37737297 http://dx.doi.org/10.1038/s41598-023-43034-9 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Akl, Magda A.
Mostafa, Aya G.
Abdelaal, Magdy Y.
Nour, Mennat Allah K.
Surfactant supported chitosan for efficient removal of Cr(VI) and anionic food stuff dyes from aquatic solutions
title Surfactant supported chitosan for efficient removal of Cr(VI) and anionic food stuff dyes from aquatic solutions
title_full Surfactant supported chitosan for efficient removal of Cr(VI) and anionic food stuff dyes from aquatic solutions
title_fullStr Surfactant supported chitosan for efficient removal of Cr(VI) and anionic food stuff dyes from aquatic solutions
title_full_unstemmed Surfactant supported chitosan for efficient removal of Cr(VI) and anionic food stuff dyes from aquatic solutions
title_short Surfactant supported chitosan for efficient removal of Cr(VI) and anionic food stuff dyes from aquatic solutions
title_sort surfactant supported chitosan for efficient removal of cr(vi) and anionic food stuff dyes from aquatic solutions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10517148/
https://www.ncbi.nlm.nih.gov/pubmed/37737297
http://dx.doi.org/10.1038/s41598-023-43034-9
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