Removal of Sb(III) by 3D-reduced graphene oxide/sodium alginate double-network composites from an aqueous batch and fixed-bed system

We created 3D-reduced graphene oxide/sodium alginate double network (GAD) beads to address the problem of local water pollution by antimony. GAD is a novel material with the high specific surface area of graphene and biosecurity of sodium alginate. Due to the introduction of graphene, the thermal st...

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Autores principales: Yang, Xiuzhen, Zhou, Tengzhi, Deng, Renjian, Zhu, Zhenya, Saleem, Atif, Zhang, Yuezhou
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8599853/
https://www.ncbi.nlm.nih.gov/pubmed/34789761
http://dx.doi.org/10.1038/s41598-021-01788-0
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author Yang, Xiuzhen
Zhou, Tengzhi
Deng, Renjian
Zhu, Zhenya
Saleem, Atif
Zhang, Yuezhou
author_facet Yang, Xiuzhen
Zhou, Tengzhi
Deng, Renjian
Zhu, Zhenya
Saleem, Atif
Zhang, Yuezhou
author_sort Yang, Xiuzhen
collection PubMed
description We created 3D-reduced graphene oxide/sodium alginate double network (GAD) beads to address the problem of local water pollution by antimony. GAD is a novel material with the high specific surface area of graphene and biosecurity of sodium alginate. Due to the introduction of graphene, the thermal stability and specific surface area of GAD are enhanced, as shown from the FTIR, TGA, BET, Raman, and XRD characterizations. The influence of different environmental variables-such as the pH, dosage, temperature, contact time, and sodium chloride concentration on the Sb(III) sorption with GAD-was investigated. The adsorption results fit well with both the pseudo-second order (R(2) > 0.99) and Freundlich (R(2) > 0.99) isotherm models. The temperature rise has a negative influence on the adsorption. The Langmuir adsorption capacity is 7.67 mg/g, which is higher than many adsorbents. The GAD results from the fixed-bed adsorption experiment were a good fit with the Thomas model (R(2) > 0.99). In addition, GAD appears to be a renewable and ideal adsorbent for the treatment of antimony pollution in aqueous systems.
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spelling pubmed-85998532021-11-19 Removal of Sb(III) by 3D-reduced graphene oxide/sodium alginate double-network composites from an aqueous batch and fixed-bed system Yang, Xiuzhen Zhou, Tengzhi Deng, Renjian Zhu, Zhenya Saleem, Atif Zhang, Yuezhou Sci Rep Article We created 3D-reduced graphene oxide/sodium alginate double network (GAD) beads to address the problem of local water pollution by antimony. GAD is a novel material with the high specific surface area of graphene and biosecurity of sodium alginate. Due to the introduction of graphene, the thermal stability and specific surface area of GAD are enhanced, as shown from the FTIR, TGA, BET, Raman, and XRD characterizations. The influence of different environmental variables-such as the pH, dosage, temperature, contact time, and sodium chloride concentration on the Sb(III) sorption with GAD-was investigated. The adsorption results fit well with both the pseudo-second order (R(2) > 0.99) and Freundlich (R(2) > 0.99) isotherm models. The temperature rise has a negative influence on the adsorption. The Langmuir adsorption capacity is 7.67 mg/g, which is higher than many adsorbents. The GAD results from the fixed-bed adsorption experiment were a good fit with the Thomas model (R(2) > 0.99). In addition, GAD appears to be a renewable and ideal adsorbent for the treatment of antimony pollution in aqueous systems. Nature Publishing Group UK 2021-11-17 /pmc/articles/PMC8599853/ /pubmed/34789761 http://dx.doi.org/10.1038/s41598-021-01788-0 Text en © The Author(s) 2021 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
Yang, Xiuzhen
Zhou, Tengzhi
Deng, Renjian
Zhu, Zhenya
Saleem, Atif
Zhang, Yuezhou
Removal of Sb(III) by 3D-reduced graphene oxide/sodium alginate double-network composites from an aqueous batch and fixed-bed system
title Removal of Sb(III) by 3D-reduced graphene oxide/sodium alginate double-network composites from an aqueous batch and fixed-bed system
title_full Removal of Sb(III) by 3D-reduced graphene oxide/sodium alginate double-network composites from an aqueous batch and fixed-bed system
title_fullStr Removal of Sb(III) by 3D-reduced graphene oxide/sodium alginate double-network composites from an aqueous batch and fixed-bed system
title_full_unstemmed Removal of Sb(III) by 3D-reduced graphene oxide/sodium alginate double-network composites from an aqueous batch and fixed-bed system
title_short Removal of Sb(III) by 3D-reduced graphene oxide/sodium alginate double-network composites from an aqueous batch and fixed-bed system
title_sort removal of sb(iii) by 3d-reduced graphene oxide/sodium alginate double-network composites from an aqueous batch and fixed-bed system
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8599853/
https://www.ncbi.nlm.nih.gov/pubmed/34789761
http://dx.doi.org/10.1038/s41598-021-01788-0
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