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A Green Approach for the Simultaneous Removal of Organic Dyes and Emerging Contaminants Using PPy/rGO/MOF-Fe3O4-Based Nanocomposite.

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Title: A Green Approach for the Simultaneous Removal of Organic Dyes and Emerging Contaminants Using PPy/rGO/MOF-Fe3O4-Based Nanocomposite.
Authors: Qayyum, Momna1 (AUTHOR), Faizan, Muhammad2 (AUTHOR), Javed, Mohsin1 (AUTHOR), Fiaz, Muhammad3 (AUTHOR), Fatima, Mariyam2 (AUTHOR), Ali, Ansar4 (AUTHOR), Ali, Syed Kashif5,6 (AUTHOR), Bahadur, Ali7,8 (AUTHOR) abahadur@wku.edu.cn, Iqbal, Shahid9 (AUTHOR) shahidgcs10@yahoo.com, Mahmood, Sajid10,11 (AUTHOR), Jafri, Ibrahim12 (AUTHOR), Farouk, Abd-ElAziem12 (AUTHOR)
Source: Journal of Inorganic & Organometallic Polymers & Materials. Jan2026, Vol. 36 Issue 1, p822-846. 25p.
Subjects: Nanocomposite materials, Wastewater treatment, Water pollution, Organic dyes, Adsorption kinetics, Thermodynamics, Emerging contaminants, Photocatalysis
Abstract: The contamination of water supplies by emerging contaminants (ECs) and industrial dyes has become a significant environmental threat. To remove Methylene Blue (MB) and Diclofenac Sodium (DCF) from wastewater, a novel PPy/rGO/MOF-Fe3O4 nanocomposite has been successfully developed. Additionally, the photocatalytic potential of the PPy/rGO/MOF-Fe3O4 nanocomposite was also demonstrated, showcasing nearly complete degradation of MB and DCF within 40 min. A range of analytical methods, such as XPS, FTIR, TGA, XRD, UV SEM, TEM, VSM, ICP-OES, and EDX, were utilized to analyze the materials. The Langmuir model, with correlation coefficients of R² = 0.999 for MB and 0.998 for DCF, more accurately represents the adsorption process than the Freundlich model. Furthermore, kinetic investigations demonstrated that chemisorption is the dominant mechanism, as supported by a pseudo-second-order model that showed good agreement with the experimental findings (R2 = 0.997 for MB and DCF). In contrast, the pseudo-first-order reaction model showed R² values of 0.898 for MB and 0.872 for DCF, which also aligns well with the data. According to thermodynamic studies, the interactions between dye and emerging contaminants are exothermic, with ΔHο values for MB and DCF being − 17.76 and − 29.62 kJ mol− 1, respectively. Additionally, the ΔGo values for MB and DCF are − 3.977 and − 5.771 kJ mol− 1, respectively, which indicates that these reactions are spontaneous. Significant adsorption capacities were demonstrated by the PPy/rGO/MOF-Fe3O4 nanocomposite, which achieved 215 mg/g for MB and 55 mg/g for DCF. Furthermore, the nanocomposite can easily be recovered for up to 8 cycles, enhancing its sustainability and offering a practical solution for industrial dye and other applications. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Inorganic & Organometallic Polymers & Materials is the property of Springer Nature 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: 191977359
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PubTypeId: academicJournal
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  Data: A Green Approach for the Simultaneous Removal of Organic Dyes and Emerging Contaminants Using PPy/rGO/MOF-Fe<subscript>3</subscript>O<subscript>4</subscript>-Based Nanocomposite.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Inorganic+%26+Organometallic+Polymers+%26+Materials%22">Journal of Inorganic & Organometallic Polymers & Materials</searchLink>. Jan2026, Vol. 36 Issue 1, p822-846. 25p.
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  Data: <searchLink fieldCode="DE" term="%22Nanocomposite+materials%22">Nanocomposite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Wastewater+treatment%22">Wastewater treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Water+pollution%22">Water pollution</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+dyes%22">Organic dyes</searchLink><br /><searchLink fieldCode="DE" term="%22Adsorption+kinetics%22">Adsorption kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Thermodynamics%22">Thermodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Emerging+contaminants%22">Emerging contaminants</searchLink><br /><searchLink fieldCode="DE" term="%22Photocatalysis%22">Photocatalysis</searchLink>
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  Label: Abstract
  Group: Ab
  Data: The contamination of water supplies by emerging contaminants (ECs) and industrial dyes has become a significant environmental threat. To remove Methylene Blue (MB) and Diclofenac Sodium (DCF) from wastewater, a novel PPy/rGO/MOF-Fe3O4 nanocomposite has been successfully developed. Additionally, the photocatalytic potential of the PPy/rGO/MOF-Fe3O4 nanocomposite was also demonstrated, showcasing nearly complete degradation of MB and DCF within 40 min. A range of analytical methods, such as XPS, FTIR, TGA, XRD, UV SEM, TEM, VSM, ICP-OES, and EDX, were utilized to analyze the materials. The Langmuir model, with correlation coefficients of R² = 0.999 for MB and 0.998 for DCF, more accurately represents the adsorption process than the Freundlich model. Furthermore, kinetic investigations demonstrated that chemisorption is the dominant mechanism, as supported by a pseudo-second-order model that showed good agreement with the experimental findings (R2 = 0.997 for MB and DCF). In contrast, the pseudo-first-order reaction model showed R² values of 0.898 for MB and 0.872 for DCF, which also aligns well with the data. According to thermodynamic studies, the interactions between dye and emerging contaminants are exothermic, with ΔHο values for MB and DCF being − 17.76 and − 29.62 kJ mol− 1, respectively. Additionally, the ΔGo values for MB and DCF are − 3.977 and − 5.771 kJ mol− 1, respectively, which indicates that these reactions are spontaneous. Significant adsorption capacities were demonstrated by the PPy/rGO/MOF-Fe3O4 nanocomposite, which achieved 215 mg/g for MB and 55 mg/g for DCF. Furthermore, the nanocomposite can easily be recovered for up to 8 cycles, enhancing its sustainability and offering a practical solution for industrial dye and other applications. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Journal of Inorganic & Organometallic Polymers & Materials is the property of Springer Nature 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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      – Type: doi
        Value: 10.1007/s10904-025-03967-2
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 25
        StartPage: 822
    Subjects:
      – SubjectFull: Nanocomposite materials
        Type: general
      – SubjectFull: Wastewater treatment
        Type: general
      – SubjectFull: Water pollution
        Type: general
      – SubjectFull: Organic dyes
        Type: general
      – SubjectFull: Adsorption kinetics
        Type: general
      – SubjectFull: Thermodynamics
        Type: general
      – SubjectFull: Emerging contaminants
        Type: general
      – SubjectFull: Photocatalysis
        Type: general
    Titles:
      – TitleFull: A Green Approach for the Simultaneous Removal of Organic Dyes and Emerging Contaminants Using PPy/rGO/MOF-Fe3O4-Based Nanocomposite.
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              M: 01
              Text: Jan2026
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              Y: 2026
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