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New strategy to remove phosphate from low concentration solution by MOFs-modified resin: High affinity and thermal desorption.

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Title: New strategy to remove phosphate from low concentration solution by MOFs-modified resin: High affinity and thermal desorption.
Authors: Tang, Qiong1 (AUTHOR), Yin, Zhonglong1 (AUTHOR), Wang, Ruoding1 (AUTHOR), Zhu, Wei1 (AUTHOR), Zhang, Zepeng1 (AUTHOR), Wang, Yue1 (AUTHOR), Yang, Zhen1 (AUTHOR), Liu, Fuqiang2 (AUTHOR), Yang, Weiben1 (AUTHOR) yangwb007@njnu.edu.cn
Source: Chemical Engineering Journal. Jun2023, Vol. 465, pN.PAG-N.PAG. 1p.
Subjects: Phosphate removal (Water purification), Metal-organic frameworks, Thermal desorption, Calcium phosphate, Molecular dynamics, Phosphates, Adsorption capacity
Abstract: [Display omitted] • MIL-101(Fe) modified resin was constructed to remove low concentration phosphate. • Both high adsorption affinity toward phosphate and easy regeneration were achieved. • Electrostatic attraction and ligand exchange were the main adsorption mechanisms. Adsorption process was usually torn between higher affinity and easier regeneration. Herein, for removing phosphate from low concentration solution, a new strategy was developed to break this tradeoff by metal organic frameworks (MOFs) confined in resins. For comparison, a series of metal oxide modified resins were prepared as adsorbents together with MOFs modified resins (transformation from corresponding oxides). MIL-101(Fe) presents higher adsorption capacity (41.79 mg/g) than Oxide(Fe)@201(36.07 mg/g), as well as high anti-interference ability with removal efficiency of 99.8% (2 mg/L phosphate), even if the loading amounts of iron in Oxide(Fe)@201 is almost twice of that in MIL-101(Fe)@201. Instrumental analysis and molecular dynamics simulations show that the higher adsorption affinity is mainly due to direct interaction between Fe3+ and phosphate via the formation of Fe-O-P, leading to much lower adsorption binding energy (E ads) of phosphate on MIL-101(Fe)@201 (-42.48 kcal/mol) than Oxide(Fe)@201; In desorption process, the MOFs structure can be stably restored with push of organic salt and high temperature (60 °C) around neutral pH due to the reversible structural transformation of MOFs. Moreover, MIL-101(Fe)@201 can continuously purify wastewater containing low concentration phosphate in fixed bed system after multiple regeneration, the water treatment capacity remained above ∼3000 BV and the regenerants can be intermittently recycled with precipitation of calcium phosphate from the solutions. [ABSTRACT FROM AUTHOR]
Copyright of Chemical Engineering Journal 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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DbLabel: Engineering Source
An: 163695157
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  Label: Title
  Group: Ti
  Data: New strategy to remove phosphate from low concentration solution by MOFs-modified resin: High affinity and thermal desorption.
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  Data: <searchLink fieldCode="AR" term="%22Tang%2C+Qiong%22">Tang, Qiong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yin%2C+Zhonglong%22">Yin, Zhonglong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Ruoding%22">Wang, Ruoding</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhu%2C+Wei%22">Zhu, Wei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zepeng%22">Zhang, Zepeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Yue%22">Wang, Yue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Zhen%22">Yang, Zhen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Fuqiang%22">Liu, Fuqiang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Weiben%22">Yang, Weiben</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yangwb007@njnu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+Journal%22">Chemical Engineering Journal</searchLink>. Jun2023, Vol. 465, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Phosphate+removal+%28Water+purification%29%22">Phosphate removal (Water purification)</searchLink><br /><searchLink fieldCode="DE" term="%22Metal-organic+frameworks%22">Metal-organic frameworks</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+desorption%22">Thermal desorption</searchLink><br /><searchLink fieldCode="DE" term="%22Calcium+phosphate%22">Calcium phosphate</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+dynamics%22">Molecular dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Phosphates%22">Phosphates</searchLink><br /><searchLink fieldCode="DE" term="%22Adsorption+capacity%22">Adsorption capacity</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: [Display omitted] • MIL-101(Fe) modified resin was constructed to remove low concentration phosphate. • Both high adsorption affinity toward phosphate and easy regeneration were achieved. • Electrostatic attraction and ligand exchange were the main adsorption mechanisms. Adsorption process was usually torn between higher affinity and easier regeneration. Herein, for removing phosphate from low concentration solution, a new strategy was developed to break this tradeoff by metal organic frameworks (MOFs) confined in resins. For comparison, a series of metal oxide modified resins were prepared as adsorbents together with MOFs modified resins (transformation from corresponding oxides). MIL-101(Fe) presents higher adsorption capacity (41.79 mg/g) than Oxide(Fe)@201(36.07 mg/g), as well as high anti-interference ability with removal efficiency of 99.8% (2 mg/L phosphate), even if the loading amounts of iron in Oxide(Fe)@201 is almost twice of that in MIL-101(Fe)@201. Instrumental analysis and molecular dynamics simulations show that the higher adsorption affinity is mainly due to direct interaction between Fe3+ and phosphate via the formation of Fe-O-P, leading to much lower adsorption binding energy (E ads) of phosphate on MIL-101(Fe)@201 (-42.48 kcal/mol) than Oxide(Fe)@201; In desorption process, the MOFs structure can be stably restored with push of organic salt and high temperature (60 °C) around neutral pH due to the reversible structural transformation of MOFs. Moreover, MIL-101(Fe)@201 can continuously purify wastewater containing low concentration phosphate in fixed bed system after multiple regeneration, the water treatment capacity remained above ∼3000 BV and the regenerants can be intermittently recycled with precipitation of calcium phosphate from the solutions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Chemical Engineering Journal 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.cej.2023.142864
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Phosphate removal (Water purification)
        Type: general
      – SubjectFull: Metal-organic frameworks
        Type: general
      – SubjectFull: Thermal desorption
        Type: general
      – SubjectFull: Calcium phosphate
        Type: general
      – SubjectFull: Molecular dynamics
        Type: general
      – SubjectFull: Phosphates
        Type: general
      – SubjectFull: Adsorption capacity
        Type: general
    Titles:
      – TitleFull: New strategy to remove phosphate from low concentration solution by MOFs-modified resin: High affinity and thermal desorption.
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            NameFull: Tang, Qiong
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            NameFull: Yin, Zhonglong
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            NameFull: Wang, Ruoding
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            NameFull: Zhu, Wei
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            NameFull: Zhang, Zepeng
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            NameFull: Wang, Yue
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            NameFull: Liu, Fuqiang
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            – D: 01
              M: 06
              Text: Jun2023
              Type: published
              Y: 2023
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