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Enhanced U(VI) separation from aqueous solution with plasma-reduced nZV Fe/Ni doped biochar: Performance and mechanism.

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Title: Enhanced U(VI) separation from aqueous solution with plasma-reduced nZV Fe/Ni doped biochar: Performance and mechanism.
Authors: Shaban, Muhammad1,2 (AUTHOR), Zhu, Yingshan1,2 (AUTHOR), Alharbi, Njud S.3 (AUTHOR), Ren, Xuemei1 (AUTHOR), Chen, Changlun1,4 (AUTHOR) clchen@ipp.ac.cn
Source: Separation & Purification Technology. Jul2025:Part 2, Vol. 361, pN.PAG-N.PAG. 1p.
Subjects: Zero-valent iron, Argon plasmas, Rice hulls, Radioactive elements, Environmental remediation, Uranium
Abstract: [Display omitted] • nZV Fe/Ni doped biochar was prepared through plasma reduction technique. • nZV Fe/Ni doped biochar enhance the separation of U(VI). • Removal mechanisms of U(VI) by nZV Fe/Ni doped biochar involve in adsorption and reduction. • nZV Fe/Ni doped biochar is promising materials for the remediation of U(VI) contamination. Uranium, a radioactive element, and its contamination in the solution will give rise to severe threats to the environment and human health, which draws attention to the development of long-lasting and creative techniques for its removal. This work presented a novel and highly effective adsorbent for uranium separation: biochar (BC) supported nanoscale zero-valent iron/nickel bimetallic composite (nZV BC@Fe/Ni). Hydrogen/argon plasma (70 W for 30 min) was utilized to reduce and uniformly distribute Fe and Ni on BC. The composite's U(VI) removal efficacy examined at four distinct mass ratios of Fe to Ni: 1:0.2, 1:0.4, 1:0.6, and 1:0.8. The nZV BC@Fe/Ni showed a remarkable removal capacity of 150.62 mg g−1 and a removal rate of 93.94 % at pH 6.0 and temperature of 303 K when the mass ratio of Fe to Ni was 1:0.4, demonstrating its high level of effectiveness. In addition, the comparative study among nZV BC@Fe/Ni, BC@Fe/Ni, BC@Fe, BC@Ni, and BC illustrated that the nZV bimetallic composite comes out to be more efficient than others for U(VI) removal. The removal mechanism of U(VI) by nZV BC@Fe/Ni was elucidated. These findings not only highlight the high efficiency of nZV BC@Fe/Ni in removing U(VI) but also suggest its potential for large-scale water treatment applications due to its cost-effectiveness and scalability. The use of rice husk biochar further underscores the environmental benefits by utilizing a renewable waste product. This work provides a promising approach for tackling U(VI) contamination in aqueous solution and can be extended to other harmful metal ions, contributing to more sustainable and affordable environmental remediation strategies. [ABSTRACT FROM AUTHOR]
Copyright of Separation & Purification Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 183205717
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PubTypeId: academicJournal
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  Data: Enhanced U(VI) separation from aqueous solution with plasma-reduced nZV Fe/Ni doped biochar: Performance and mechanism.
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  Data: <searchLink fieldCode="AR" term="%22Shaban%2C+Muhammad%22">Shaban, Muhammad</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhu%2C+Yingshan%22">Zhu, Yingshan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alharbi%2C+Njud+S%2E%22">Alharbi, Njud S.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ren%2C+Xuemei%22">Ren, Xuemei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Changlun%22">Chen, Changlun</searchLink><relatesTo>1,4</relatesTo> (AUTHOR)<i> clchen@ipp.ac.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Separation+%26+Purification+Technology%22">Separation & Purification Technology</searchLink>. Jul2025:Part 2, Vol. 361, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Zero-valent+iron%22">Zero-valent iron</searchLink><br /><searchLink fieldCode="DE" term="%22Argon+plasmas%22">Argon plasmas</searchLink><br /><searchLink fieldCode="DE" term="%22Rice+hulls%22">Rice hulls</searchLink><br /><searchLink fieldCode="DE" term="%22Radioactive+elements%22">Radioactive elements</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+remediation%22">Environmental remediation</searchLink><br /><searchLink fieldCode="DE" term="%22Uranium%22">Uranium</searchLink>
– Name: Abstract
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  Data: [Display omitted] • nZV Fe/Ni doped biochar was prepared through plasma reduction technique. • nZV Fe/Ni doped biochar enhance the separation of U(VI). • Removal mechanisms of U(VI) by nZV Fe/Ni doped biochar involve in adsorption and reduction. • nZV Fe/Ni doped biochar is promising materials for the remediation of U(VI) contamination. Uranium, a radioactive element, and its contamination in the solution will give rise to severe threats to the environment and human health, which draws attention to the development of long-lasting and creative techniques for its removal. This work presented a novel and highly effective adsorbent for uranium separation: biochar (BC) supported nanoscale zero-valent iron/nickel bimetallic composite (nZV BC@Fe/Ni). Hydrogen/argon plasma (70 W for 30 min) was utilized to reduce and uniformly distribute Fe and Ni on BC. The composite's U(VI) removal efficacy examined at four distinct mass ratios of Fe to Ni: 1:0.2, 1:0.4, 1:0.6, and 1:0.8. The nZV BC@Fe/Ni showed a remarkable removal capacity of 150.62 mg g−1 and a removal rate of 93.94 % at pH 6.0 and temperature of 303 K when the mass ratio of Fe to Ni was 1:0.4, demonstrating its high level of effectiveness. In addition, the comparative study among nZV BC@Fe/Ni, BC@Fe/Ni, BC@Fe, BC@Ni, and BC illustrated that the nZV bimetallic composite comes out to be more efficient than others for U(VI) removal. The removal mechanism of U(VI) by nZV BC@Fe/Ni was elucidated. These findings not only highlight the high efficiency of nZV BC@Fe/Ni in removing U(VI) but also suggest its potential for large-scale water treatment applications due to its cost-effectiveness and scalability. The use of rice husk biochar further underscores the environmental benefits by utilizing a renewable waste product. This work provides a promising approach for tackling U(VI) contamination in aqueous solution and can be extended to other harmful metal ions, contributing to more sustainable and affordable environmental remediation strategies. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Separation & Purification Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.seppur.2025.131404
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Zero-valent iron
        Type: general
      – SubjectFull: Argon plasmas
        Type: general
      – SubjectFull: Rice hulls
        Type: general
      – SubjectFull: Radioactive elements
        Type: general
      – SubjectFull: Environmental remediation
        Type: general
      – SubjectFull: Uranium
        Type: general
    Titles:
      – TitleFull: Enhanced U(VI) separation from aqueous solution with plasma-reduced nZV Fe/Ni doped biochar: Performance and mechanism.
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            NameFull: Shaban, Muhammad
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            NameFull: Zhu, Yingshan
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            NameFull: Alharbi, Njud S.
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            NameFull: Ren, Xuemei
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            NameFull: Chen, Changlun
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            – D: 19
              M: 07
              Text: Jul2025:Part 2
              Type: published
              Y: 2025
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              Value: 361
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