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Development of Blended Biopolymer-Based Photocatalytic Hydrogel Beads for Adsorption and Photodegradation of Dyes

Blended biopolymer-based photocatalytic hydrogel beads were synthesized by dissolving the biopolymers in 1-ethyl-3-methylimidazolium acetate ([Emim][Ac]), adding TiO(2), and reconstituting the beads with ethanol. The incorporation of modifying biopolymer significantly enhanced the adsorption capacit...

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Autores principales: Weon, Seung Hyeon, Han, Jiwoo, Choi, Yong-Keun, Park, Saerom, Lee, Sang Hyun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10454056/
https://www.ncbi.nlm.nih.gov/pubmed/37623085
http://dx.doi.org/10.3390/gels9080630
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author Weon, Seung Hyeon
Han, Jiwoo
Choi, Yong-Keun
Park, Saerom
Lee, Sang Hyun
author_facet Weon, Seung Hyeon
Han, Jiwoo
Choi, Yong-Keun
Park, Saerom
Lee, Sang Hyun
author_sort Weon, Seung Hyeon
collection PubMed
description Blended biopolymer-based photocatalytic hydrogel beads were synthesized by dissolving the biopolymers in 1-ethyl-3-methylimidazolium acetate ([Emim][Ac]), adding TiO(2), and reconstituting the beads with ethanol. The incorporation of modifying biopolymer significantly enhanced the adsorption capacity of the cellulose/TiO(2) beads. Cellulose/carrageenan/TiO(2) beads exhibited a 7.0-fold increase in adsorption capacity for methylene blue (MB). In contrast, cellulose/chitosan/TiO(2) beads showed a 4.8-fold increase in adsorption capacity for methyl orange (MO) compared with cellulose/TiO(2) beads. In addition, cellulose/TiO(2) microbeads were prepared through the sol–gel transition of the [Emim][Ac]-in-oil emulsion to enhance photodegradation activity. These microbeads displayed a 4.6-fold higher adsorption capacity and 2.8-fold higher photodegradation activity for MB than the millimeter-sized beads. Furthermore, they exhibited superior dye removal efficiencies for various dyes such as Congo red, MO, MB, crystal violet, and rhodamine B, surpassing the performance of larger beads. To expand the industrial applicability of the microbeads, biopolymer/TiO(2) magnetic microbeads were developed by incorporating Fe(2)O(3). These magnetic microbeads outperformed millimeter-sized beads regarding the efficiency and time required for MB removal from aqueous solutions. Furthermore, the physicochemical properties of magnetic microbeads can be easily controlled by adjusting the type of biopolymer modifier, the TiO(2) and magnetic particle content, and the ratio of each component based on the target molecule. Therefore, biopolymer-based photocatalytic magnetic microbeads have great potential not only in environmental fields but also in biomedical fields.
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spelling pubmed-104540562023-08-26 Development of Blended Biopolymer-Based Photocatalytic Hydrogel Beads for Adsorption and Photodegradation of Dyes Weon, Seung Hyeon Han, Jiwoo Choi, Yong-Keun Park, Saerom Lee, Sang Hyun Gels Article Blended biopolymer-based photocatalytic hydrogel beads were synthesized by dissolving the biopolymers in 1-ethyl-3-methylimidazolium acetate ([Emim][Ac]), adding TiO(2), and reconstituting the beads with ethanol. The incorporation of modifying biopolymer significantly enhanced the adsorption capacity of the cellulose/TiO(2) beads. Cellulose/carrageenan/TiO(2) beads exhibited a 7.0-fold increase in adsorption capacity for methylene blue (MB). In contrast, cellulose/chitosan/TiO(2) beads showed a 4.8-fold increase in adsorption capacity for methyl orange (MO) compared with cellulose/TiO(2) beads. In addition, cellulose/TiO(2) microbeads were prepared through the sol–gel transition of the [Emim][Ac]-in-oil emulsion to enhance photodegradation activity. These microbeads displayed a 4.6-fold higher adsorption capacity and 2.8-fold higher photodegradation activity for MB than the millimeter-sized beads. Furthermore, they exhibited superior dye removal efficiencies for various dyes such as Congo red, MO, MB, crystal violet, and rhodamine B, surpassing the performance of larger beads. To expand the industrial applicability of the microbeads, biopolymer/TiO(2) magnetic microbeads were developed by incorporating Fe(2)O(3). These magnetic microbeads outperformed millimeter-sized beads regarding the efficiency and time required for MB removal from aqueous solutions. Furthermore, the physicochemical properties of magnetic microbeads can be easily controlled by adjusting the type of biopolymer modifier, the TiO(2) and magnetic particle content, and the ratio of each component based on the target molecule. Therefore, biopolymer-based photocatalytic magnetic microbeads have great potential not only in environmental fields but also in biomedical fields. MDPI 2023-08-05 /pmc/articles/PMC10454056/ /pubmed/37623085 http://dx.doi.org/10.3390/gels9080630 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Weon, Seung Hyeon
Han, Jiwoo
Choi, Yong-Keun
Park, Saerom
Lee, Sang Hyun
Development of Blended Biopolymer-Based Photocatalytic Hydrogel Beads for Adsorption and Photodegradation of Dyes
title Development of Blended Biopolymer-Based Photocatalytic Hydrogel Beads for Adsorption and Photodegradation of Dyes
title_full Development of Blended Biopolymer-Based Photocatalytic Hydrogel Beads for Adsorption and Photodegradation of Dyes
title_fullStr Development of Blended Biopolymer-Based Photocatalytic Hydrogel Beads for Adsorption and Photodegradation of Dyes
title_full_unstemmed Development of Blended Biopolymer-Based Photocatalytic Hydrogel Beads for Adsorption and Photodegradation of Dyes
title_short Development of Blended Biopolymer-Based Photocatalytic Hydrogel Beads for Adsorption and Photodegradation of Dyes
title_sort development of blended biopolymer-based photocatalytic hydrogel beads for adsorption and photodegradation of dyes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10454056/
https://www.ncbi.nlm.nih.gov/pubmed/37623085
http://dx.doi.org/10.3390/gels9080630
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