Facile preparation and highly efficient sorption of magnetic composite graphene oxide/Fe3O4/GC for uranium removal

Abstract In this work, we reported for the first time a novel magnetic composite graphene oxide/Fe3O4/glucose-COOH (GO/Fe3O4/GC) that was facilely prepared from glucose through the hydrothermal carbonization and further combination with graphene oxide (GO). The chemical and structural properties of...

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Autores principales:	Aili Yang, Zhijun Wang, Yukuan Zhu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c8caa7977eb248dbbdaa14f359a82f75
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spelling	oai:doaj.org-article:c8caa7977eb248dbbdaa14f359a82f752021-12-02T16:45:11ZFacile preparation and highly efficient sorption of magnetic composite graphene oxide/Fe3O4/GC for uranium removal10.1038/s41598-021-86768-02045-2322https://doaj.org/article/c8caa7977eb248dbbdaa14f359a82f752021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86768-0https://doaj.org/toc/2045-2322Abstract In this work, we reported for the first time a novel magnetic composite graphene oxide/Fe3O4/glucose-COOH (GO/Fe3O4/GC) that was facilely prepared from glucose through the hydrothermal carbonization and further combination with graphene oxide (GO). The chemical and structural properties of the samples were investigated. By the batch uranium adsorption experiments, the magnetic composite GO/Fe3O4/GC exhibits an excellent adsorption performance and fast solid–liquid separation for uranium from aqueous solution. GO/Fe3O4/GC (the maximum adsorption capacity (Q m) was 390.70 mg g−1) exhibited excellent adsorption capacity and higher removal rate (> 99%) for U(VI) than those of glucose-COOH (GC) and magnetic GC (MGC). The effect of the coexisting ions, such as Na+, K+, Mg2+, Ca2+, and Al3+, on the U(VI) removal efficiency of GO/Fe3O4/GC was examined. The equilibrium sorption and sorption rate for the as-prepared adsorbents well fit the Langmuir model and pseudo second-order kinetic model, respectively. The thermodynamic parameters (ΔH 0 = 11.57 kJ mol−1 and ΔG 0 < 0) for GO/Fe3O4/GC indicate that the sorption process of U(VI) was exothermic and spontaneous. Thus, this research provides a facile strategy for the preparation of the magnetic composite with low cost, high efficiency and fast separation for the U(VI) removal from aqueous solution.Aili YangZhijun WangYukuan ZhuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Aili Yang Zhijun Wang Yukuan Zhu Facile preparation and highly efficient sorption of magnetic composite graphene oxide/Fe3O4/GC for uranium removal
description	Abstract In this work, we reported for the first time a novel magnetic composite graphene oxide/Fe3O4/glucose-COOH (GO/Fe3O4/GC) that was facilely prepared from glucose through the hydrothermal carbonization and further combination with graphene oxide (GO). The chemical and structural properties of the samples were investigated. By the batch uranium adsorption experiments, the magnetic composite GO/Fe3O4/GC exhibits an excellent adsorption performance and fast solid–liquid separation for uranium from aqueous solution. GO/Fe3O4/GC (the maximum adsorption capacity (Q m) was 390.70 mg g−1) exhibited excellent adsorption capacity and higher removal rate (> 99%) for U(VI) than those of glucose-COOH (GC) and magnetic GC (MGC). The effect of the coexisting ions, such as Na+, K+, Mg2+, Ca2+, and Al3+, on the U(VI) removal efficiency of GO/Fe3O4/GC was examined. The equilibrium sorption and sorption rate for the as-prepared adsorbents well fit the Langmuir model and pseudo second-order kinetic model, respectively. The thermodynamic parameters (ΔH 0 = 11.57 kJ mol−1 and ΔG 0 < 0) for GO/Fe3O4/GC indicate that the sorption process of U(VI) was exothermic and spontaneous. Thus, this research provides a facile strategy for the preparation of the magnetic composite with low cost, high efficiency and fast separation for the U(VI) removal from aqueous solution.
format	article
author	Aili Yang Zhijun Wang Yukuan Zhu
author_facet	Aili Yang Zhijun Wang Yukuan Zhu
author_sort	Aili Yang
title	Facile preparation and highly efficient sorption of magnetic composite graphene oxide/Fe3O4/GC for uranium removal
title_short	Facile preparation and highly efficient sorption of magnetic composite graphene oxide/Fe3O4/GC for uranium removal
title_full	Facile preparation and highly efficient sorption of magnetic composite graphene oxide/Fe3O4/GC for uranium removal
title_fullStr	Facile preparation and highly efficient sorption of magnetic composite graphene oxide/Fe3O4/GC for uranium removal
title_full_unstemmed	Facile preparation and highly efficient sorption of magnetic composite graphene oxide/Fe3O4/GC for uranium removal
title_sort	facile preparation and highly efficient sorption of magnetic composite graphene oxide/fe3o4/gc for uranium removal
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c8caa7977eb248dbbdaa14f359a82f75
work_keys_str_mv	AT ailiyang facilepreparationandhighlyefficientsorptionofmagneticcompositegrapheneoxidefe3o4gcforuraniumremoval AT zhijunwang facilepreparationandhighlyefficientsorptionofmagneticcompositegrapheneoxidefe3o4gcforuraniumremoval AT yukuanzhu facilepreparationandhighlyefficientsorptionofmagneticcompositegrapheneoxidefe3o4gcforuraniumremoval
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Facile preparation and highly efficient sorption of magnetic composite graphene oxide/Fe3O4/GC for uranium removal

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