Preparation and characterization of PEGDE-EDTA-modified magnetic chitosan microsphere as an eco-friendly adsorbent for methylene blue removal
Chitosan has been acknowledged as the emerging prominent pollutant remover with environmentally friendly properties. Herein, we have developed magnetic chitosan (MC) microsphere with functional group enrichment using polyethylene glycol diglycidyl ether (PEGDE) and ethylenediaminetetraacetic acid (E...
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Elsevier
2023-01-01
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Series: | South African Journal of Chemical Engineering |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S1026918522001093 |
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author | Rahmi Rahmi Lelifajri Lelifajri Fathurrahmi Fathurrahmi Haya Fathana Muhammad Iqhrammullah |
author_facet | Rahmi Rahmi Lelifajri Lelifajri Fathurrahmi Fathurrahmi Haya Fathana Muhammad Iqhrammullah |
author_sort | Rahmi Rahmi |
collection | DOAJ |
description | Chitosan has been acknowledged as the emerging prominent pollutant remover with environmentally friendly properties. Herein, we have developed magnetic chitosan (MC) microsphere with functional group enrichment using polyethylene glycol diglycidyl ether (PEGDE) and ethylenediaminetetraacetic acid (EDTA) to remove aqueous methylene blue. The success of the functional group enrichment was proven by the characterization carried out in Fourier transform-infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and Scanning Electron Microscope (SEM) analyses. The adsorption capacity of methylene blue onto the prepared MC increased as much as 37.62% after the addition of EDTA. The optimum adsorption parameters recorded in this study were 30minutes contact time and pH level of 10. At such optimum conditions, the adsorption capacity and removal percentage reached 5.04±0.03 mg/g and 80.64±0.12%, respectively. Adsorption studies using various models revealed that the best fit of experimental data with that of theoretical was generated by the Freundlich model equation (R2 = 0.95283; root-mean-square-errors = 27.22). Exothermic adsorption was observed according to the thermodynamic study (∆H = -124.43 kJ/mol). In conclusion, our adsorbent prepared from green materials and methods could effectively remove the methylene blue from water medium. |
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id | doaj.art-e2006304274e42d580d4e07d99b7d3bd |
institution | Directory Open Access Journal |
issn | 1026-9185 |
language | English |
last_indexed | 2024-04-10T23:34:28Z |
publishDate | 2023-01-01 |
publisher | Elsevier |
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series | South African Journal of Chemical Engineering |
spelling | doaj.art-e2006304274e42d580d4e07d99b7d3bd2023-01-12T04:18:29ZengElsevierSouth African Journal of Chemical Engineering1026-91852023-01-0143296302Preparation and characterization of PEGDE-EDTA-modified magnetic chitosan microsphere as an eco-friendly adsorbent for methylene blue removalRahmi Rahmi0Lelifajri Lelifajri1Fathurrahmi Fathurrahmi2Haya Fathana3Muhammad Iqhrammullah4Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Kopelma Darussalam, Banda Aceh, 23111, Aceh, Indonesia; Correspondence author.Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Kopelma Darussalam, Banda Aceh, 23111, Aceh, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Kopelma Darussalam, Banda Aceh, 23111, Aceh, IndonesiaGraduate School of Mathematics and Applied Science, Universitas Syiah Kuala, Banda Aceh, 23111, IndonesiaDepartment of Life Sciences and Chemistry, Jacobs University Bremen, Bremen, Germany; Innovative Sustainability Lab, PT. Biham Riset dan Edukasi, Banda Aceh 23243, IndonesiaChitosan has been acknowledged as the emerging prominent pollutant remover with environmentally friendly properties. Herein, we have developed magnetic chitosan (MC) microsphere with functional group enrichment using polyethylene glycol diglycidyl ether (PEGDE) and ethylenediaminetetraacetic acid (EDTA) to remove aqueous methylene blue. The success of the functional group enrichment was proven by the characterization carried out in Fourier transform-infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and Scanning Electron Microscope (SEM) analyses. The adsorption capacity of methylene blue onto the prepared MC increased as much as 37.62% after the addition of EDTA. The optimum adsorption parameters recorded in this study were 30minutes contact time and pH level of 10. At such optimum conditions, the adsorption capacity and removal percentage reached 5.04±0.03 mg/g and 80.64±0.12%, respectively. Adsorption studies using various models revealed that the best fit of experimental data with that of theoretical was generated by the Freundlich model equation (R2 = 0.95283; root-mean-square-errors = 27.22). Exothermic adsorption was observed according to the thermodynamic study (∆H = -124.43 kJ/mol). In conclusion, our adsorbent prepared from green materials and methods could effectively remove the methylene blue from water medium.http://www.sciencedirect.com/science/article/pii/S1026918522001093Azo dyeEDTAFreundlichIron oxideMagnetic chitosanPEGDE |
spellingShingle | Rahmi Rahmi Lelifajri Lelifajri Fathurrahmi Fathurrahmi Haya Fathana Muhammad Iqhrammullah Preparation and characterization of PEGDE-EDTA-modified magnetic chitosan microsphere as an eco-friendly adsorbent for methylene blue removal South African Journal of Chemical Engineering Azo dye EDTA Freundlich Iron oxide Magnetic chitosan PEGDE |
title | Preparation and characterization of PEGDE-EDTA-modified magnetic chitosan microsphere as an eco-friendly adsorbent for methylene blue removal |
title_full | Preparation and characterization of PEGDE-EDTA-modified magnetic chitosan microsphere as an eco-friendly adsorbent for methylene blue removal |
title_fullStr | Preparation and characterization of PEGDE-EDTA-modified magnetic chitosan microsphere as an eco-friendly adsorbent for methylene blue removal |
title_full_unstemmed | Preparation and characterization of PEGDE-EDTA-modified magnetic chitosan microsphere as an eco-friendly adsorbent for methylene blue removal |
title_short | Preparation and characterization of PEGDE-EDTA-modified magnetic chitosan microsphere as an eco-friendly adsorbent for methylene blue removal |
title_sort | preparation and characterization of pegde edta modified magnetic chitosan microsphere as an eco friendly adsorbent for methylene blue removal |
topic | Azo dye EDTA Freundlich Iron oxide Magnetic chitosan PEGDE |
url | http://www.sciencedirect.com/science/article/pii/S1026918522001093 |
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