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Facile construction of Fe, N and P co-doped carbon spheres by carbothermal strategy for the adsorption and reduction of U(vi)

In this work, nitrogen and phosphorus co-doped magnetic carbon spheres encapsulating well-dispersed active Fe nanocrystals (Fe/P-CN) were fabricated via a simple copolymer pyrolysis strategy. Benefiting from heteroatoms doping, Fe/P-CN could primarily adsorb soluble U(vi) ions through abundant funct...

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Autores principales: Dong, Zhimin, Zhang, Zhibin, Zhou, Runze, Dong, Yayu, Wei, Yuanyuan, Zheng, Zhijian, Wang, Youqun, Dai, Ying, Cao, Xiaohong, Liu, Yunhai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056867/
https://www.ncbi.nlm.nih.gov/pubmed/35514430
http://dx.doi.org/10.1039/d0ra06252a
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author Dong, Zhimin
Zhang, Zhibin
Zhou, Runze
Dong, Yayu
Wei, Yuanyuan
Zheng, Zhijian
Wang, Youqun
Dai, Ying
Cao, Xiaohong
Liu, Yunhai
author_facet Dong, Zhimin
Zhang, Zhibin
Zhou, Runze
Dong, Yayu
Wei, Yuanyuan
Zheng, Zhijian
Wang, Youqun
Dai, Ying
Cao, Xiaohong
Liu, Yunhai
author_sort Dong, Zhimin
collection PubMed
description In this work, nitrogen and phosphorus co-doped magnetic carbon spheres encapsulating well-dispersed active Fe nanocrystals (Fe/P-CN) were fabricated via a simple copolymer pyrolysis strategy. Benefiting from heteroatoms doping, Fe/P-CN could primarily adsorb soluble U(vi) ions through abundant functional groups, and subsequently, the adsorbed U(vi) could be reduced to insoluble U(iv) by Fe nanocrystals. Fe/P-CN pyrolyzed at 800 °C (Fe/P-CN-800) exhibited excellent U(vi) removal capacity of 306.76 mg g(−1), surpassing nitrogen and phosphorus co-doped carbon spheres and nano zero-valent iron. In addition, the magnetic separation and thermal reactivation properties endow Fe/P-CN-800 with excellent reusability. This research, especially, provides a promising synergistic adsorption and reduction strategy to effectively remove U(vi) using heteroatom-doped composites.
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spelling pubmed-90568672022-05-04 Facile construction of Fe, N and P co-doped carbon spheres by carbothermal strategy for the adsorption and reduction of U(vi) Dong, Zhimin Zhang, Zhibin Zhou, Runze Dong, Yayu Wei, Yuanyuan Zheng, Zhijian Wang, Youqun Dai, Ying Cao, Xiaohong Liu, Yunhai RSC Adv Chemistry In this work, nitrogen and phosphorus co-doped magnetic carbon spheres encapsulating well-dispersed active Fe nanocrystals (Fe/P-CN) were fabricated via a simple copolymer pyrolysis strategy. Benefiting from heteroatoms doping, Fe/P-CN could primarily adsorb soluble U(vi) ions through abundant functional groups, and subsequently, the adsorbed U(vi) could be reduced to insoluble U(iv) by Fe nanocrystals. Fe/P-CN pyrolyzed at 800 °C (Fe/P-CN-800) exhibited excellent U(vi) removal capacity of 306.76 mg g(−1), surpassing nitrogen and phosphorus co-doped carbon spheres and nano zero-valent iron. In addition, the magnetic separation and thermal reactivation properties endow Fe/P-CN-800 with excellent reusability. This research, especially, provides a promising synergistic adsorption and reduction strategy to effectively remove U(vi) using heteroatom-doped composites. The Royal Society of Chemistry 2020-09-21 /pmc/articles/PMC9056867/ /pubmed/35514430 http://dx.doi.org/10.1039/d0ra06252a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Dong, Zhimin
Zhang, Zhibin
Zhou, Runze
Dong, Yayu
Wei, Yuanyuan
Zheng, Zhijian
Wang, Youqun
Dai, Ying
Cao, Xiaohong
Liu, Yunhai
Facile construction of Fe, N and P co-doped carbon spheres by carbothermal strategy for the adsorption and reduction of U(vi)
title Facile construction of Fe, N and P co-doped carbon spheres by carbothermal strategy for the adsorption and reduction of U(vi)
title_full Facile construction of Fe, N and P co-doped carbon spheres by carbothermal strategy for the adsorption and reduction of U(vi)
title_fullStr Facile construction of Fe, N and P co-doped carbon spheres by carbothermal strategy for the adsorption and reduction of U(vi)
title_full_unstemmed Facile construction of Fe, N and P co-doped carbon spheres by carbothermal strategy for the adsorption and reduction of U(vi)
title_short Facile construction of Fe, N and P co-doped carbon spheres by carbothermal strategy for the adsorption and reduction of U(vi)
title_sort facile construction of fe, n and p co-doped carbon spheres by carbothermal strategy for the adsorption and reduction of u(vi)
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056867/
https://www.ncbi.nlm.nih.gov/pubmed/35514430
http://dx.doi.org/10.1039/d0ra06252a
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