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Issue 12, 2018
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Enhanced performance for Eu(III) ion remediation using magnetic multiwalled carbon nanotubes functionalized with carboxymethyl cellulose nanoparticles synthesized by plasma technology

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Abstract

Herein, this paper describes the synthesis of sodium carboxymethyl cellulose (CMC)/iron oxides/multiwalled carbon nanotubes (MMWCNTs) composites (denoted as CMC/MMWCNTs) by a plasma technique and their application to the decontamination of europium ions from aqueous solutions under controlled laboratory conditions. Batch experiments were conducted to understand the interaction mechanism of europium ion sorption onto the surface of CMC/MMWCNTs nanoparticles and to evaluate the application prospects of CMC/MMWCNTs in the field of pollution remediation. The adsorption capacity of Eu(III) on CMC/MMWCNTs was greater than that of major adsorbents, illustrating that the conjugated CMC could increase the sorption capacity of CMC/MMWCNTs nanoparticles toward Eu(III) ions through providing multiple hydroxyl and carboxyl functional groups. The mutual interaction of Eu(III) ion immobilization on CMC/MMWCNTs was contributed to by outer-sphere surface complexation at low pH values, but inner-sphere surface complexation was the dominant interactional mechanism at high pH values. The experimental findings herein demonstrate that CMC/MMWCNTs composites can be highly effective adsorbents for the immobilization of Eu(III) ions or other trivalent actinide/lanthanide ions from large volumes of aqueous solution.

Graphical abstract: Enhanced performance for Eu(iii) ion remediation using magnetic multiwalled carbon nanotubes functionalized with carboxymethyl cellulose nanoparticles synthesized by plasma technology

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Publication details

The article was received on 24 Aug 2018, accepted on 27 Oct 2018 and first published on 29 Oct 2018


Article type: Research Article
DOI: 10.1039/C8QI00901E
Citation: Inorg. Chem. Front., 2018,5, 3184-3196

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    Enhanced performance for Eu(III) ion remediation using magnetic multiwalled carbon nanotubes functionalized with carboxymethyl cellulose nanoparticles synthesized by plasma technology

    P. Zong, D. Cao, Y. Cheng, S. Wang, T. Hayat, N. S. Alharbi, Z. Guo, Y. Zhao and C. He, Inorg. Chem. Front., 2018, 5, 3184
    DOI: 10.1039/C8QI00901E

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