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Highly efficient removal of Mn(II) and organic pollutant by adipate functionalized Ca-Al layered double hydroxides: Capture behavior and mechanism.

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Title: Highly efficient removal of Mn(II) and organic pollutant by adipate functionalized Ca-Al layered double hydroxides: Capture behavior and mechanism.
Authors: Zhang, Yang1 (AUTHOR), Wu, Hanjun1,2 (AUTHOR) wuhj1204@wit.edu.cn, Zhang, Zhenyue1,2,3 (AUTHOR), Guo, Wenda2,3 (AUTHOR), Yu, Junxia1,2 (AUTHOR), Zeng, Rongying4 (AUTHOR), Chi, Ruan2,3 (AUTHOR), Pan, Zhiquan1,2 (AUTHOR)
Source: Colloids & Surfaces A: Physicochemical & Engineering Aspects. Jul2025, Vol. 717, pN.PAG-N.PAG. 1p.
Subjects: Layered double hydroxides, Exothermic reactions, Naphthol, Adipic acid, Hydrogen bonding interactions
Abstract: In this work, Ca-Al LDHs were modified via co-precipitation method utilizing two distinct chemical forms of adipic acid (adipate salt and adipic acid) as intercalation agents, with the resulting materials denoted as At-LDHs (adipate-intercalated LDHs) and Aa-LDHs (adipic acid-intercalated LDHs). The results indicated that At-LDHs and Aa-LDHs all exhibit a sheet-like porous structure stacked with each other. Due to the different synthesis conditions, the sheet structure of Aa-LDHs is smaller than that of At-LDHs. The kinetic and isotherm simulation results indicated that the capture capacity of At-LDHs for Mn2 + was up to 227.53 mg·g−1 when the pH value was 7, while that of Aa-LDHs for naphthol green B reached to 132.73 mg·g−1 at a pH value of 9. The kinetic and thermodynamic simulation results indicated that the capture of Mn2+ by At-LDHs conformed to the pseudo-first-order kinetic model and the Langmuir isotherm model, and the capture of naphthol green B by Aa-LDHs conformed to the Elovich kinetic model and the Temkin isotherm model. In addition, the capture process of both was a spontaneous exothermic reaction. Benefiting from the excellent adsorption properties of At-LDHs composites (Ion exchange, electrostatic attraction, adsorption precipitation, functional group chelation), the adsorption effect on Mn2+ was better. Aa-LDHs have good adsorption effect on naphthol green B in solution through electrostatic attraction, dipole-dipole hydrogen bond, Yoshida hydrogen bond and n-π interaction. At-LDHs and Aa-LDHs have great potential to be employed as the materials for the removal of organic and inorganic composite pollutants from wastewater. [Display omitted] • Adipate and adipic acid functionalized LDHs were synthesized. • The composites showed excellent uptake properties for Mn(II) and naphthol green B. • At-LDHs exhibit remarkable selectivity for Mn(II) in multi-ion coexisting systems. • The composites had good stability and recyclability on capture of Mn(II) and naphthol green B. [ABSTRACT FROM AUTHOR]
Copyright of Colloids & Surfaces A: Physicochemical & Engineering Aspects 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.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 184751342
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PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Highly efficient removal of Mn(II) and organic pollutant by adipate functionalized Ca-Al layered double hydroxides: Capture behavior and mechanism.
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  Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Yang%22">Zhang, Yang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Hanjun%22">Wu, Hanjun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> wuhj1204@wit.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zhenyue%22">Zhang, Zhenyue</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Wenda%22">Guo, Wenda</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Junxia%22">Yu, Junxia</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zeng%2C+Rongying%22">Zeng, Rongying</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chi%2C+Ruan%22">Chi, Ruan</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pan%2C+Zhiquan%22">Pan, Zhiquan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Colloids+%26+Surfaces+A%3A+Physicochemical+%26+Engineering+Aspects%22">Colloids & Surfaces A: Physicochemical & Engineering Aspects</searchLink>. Jul2025, Vol. 717, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Layered+double+hydroxides%22">Layered double hydroxides</searchLink><br /><searchLink fieldCode="DE" term="%22Exothermic+reactions%22">Exothermic reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Naphthol%22">Naphthol</searchLink><br /><searchLink fieldCode="DE" term="%22Adipic+acid%22">Adipic acid</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+bonding+interactions%22">Hydrogen bonding interactions</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this work, Ca-Al LDHs were modified via co-precipitation method utilizing two distinct chemical forms of adipic acid (adipate salt and adipic acid) as intercalation agents, with the resulting materials denoted as At-LDHs (adipate-intercalated LDHs) and Aa-LDHs (adipic acid-intercalated LDHs). The results indicated that At-LDHs and Aa-LDHs all exhibit a sheet-like porous structure stacked with each other. Due to the different synthesis conditions, the sheet structure of Aa-LDHs is smaller than that of At-LDHs. The kinetic and isotherm simulation results indicated that the capture capacity of At-LDHs for Mn2 + was up to 227.53 mg·g−1 when the pH value was 7, while that of Aa-LDHs for naphthol green B reached to 132.73 mg·g−1 at a pH value of 9. The kinetic and thermodynamic simulation results indicated that the capture of Mn2+ by At-LDHs conformed to the pseudo-first-order kinetic model and the Langmuir isotherm model, and the capture of naphthol green B by Aa-LDHs conformed to the Elovich kinetic model and the Temkin isotherm model. In addition, the capture process of both was a spontaneous exothermic reaction. Benefiting from the excellent adsorption properties of At-LDHs composites (Ion exchange, electrostatic attraction, adsorption precipitation, functional group chelation), the adsorption effect on Mn2+ was better. Aa-LDHs have good adsorption effect on naphthol green B in solution through electrostatic attraction, dipole-dipole hydrogen bond, Yoshida hydrogen bond and n-π interaction. At-LDHs and Aa-LDHs have great potential to be employed as the materials for the removal of organic and inorganic composite pollutants from wastewater. [Display omitted] • Adipate and adipic acid functionalized LDHs were synthesized. • The composites showed excellent uptake properties for Mn(II) and naphthol green B. • At-LDHs exhibit remarkable selectivity for Mn(II) in multi-ion coexisting systems. • The composites had good stability and recyclability on capture of Mn(II) and naphthol green B. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Colloids & Surfaces A: Physicochemical & Engineering Aspects 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:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.colsurfa.2025.136774
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Layered double hydroxides
        Type: general
      – SubjectFull: Exothermic reactions
        Type: general
      – SubjectFull: Naphthol
        Type: general
      – SubjectFull: Adipic acid
        Type: general
      – SubjectFull: Hydrogen bonding interactions
        Type: general
    Titles:
      – TitleFull: Highly efficient removal of Mn(II) and organic pollutant by adipate functionalized Ca-Al layered double hydroxides: Capture behavior and mechanism.
        Type: main
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            NameFull: Zhang, Yang
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            NameFull: Wu, Hanjun
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            NameFull: Zhang, Zhenyue
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            NameFull: Guo, Wenda
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            NameFull: Yu, Junxia
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            NameFull: Zeng, Rongying
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            – D: 20
              M: 07
              Text: Jul2025
              Type: published
              Y: 2025
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              Value: 717
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