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Photocatalytic and Antimicrobial Studies of Ag‐Doped ZnO–g‐C3N4–MnO2 Quaternary Heterostructure.

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Title: Photocatalytic and Antimicrobial Studies of Ag‐Doped ZnO–g‐C3N4–MnO2 Quaternary Heterostructure.
Authors: Gindose, Teketel Girma1,2 (AUTHOR) girmatek2007@gmail.com, Mothudi, Bakang M.1,2 (AUTHOR), Kassa, Muluneh Endashaw3 (AUTHOR), Zereffa, Enyew Amare3 (AUTHOR), Taddesse, Abi M.4 (AUTHOR), Mekonnen, Kebede Nigussie5,6 (AUTHOR), Ebrahim, Anwar Kemal7 (AUTHOR), Mtunzi, Fanyana M.8 (AUTHOR), Ndumiso, Nxumalo Edward9 (AUTHOR), Ashebr, Tesfay G.5,6 (AUTHOR), Atisme, Tsegaye Belege5,6 (AUTHOR), Suter, Evans K.8 (AUTHOR), Dessalegn, Tegene3 (AUTHOR), Habib, Mohammad Rezwan (AUTHOR) mohabib@wiley.com
Source: Advances in Materials Science & Engineering. 6/19/2026, Vol. 2026, p1-14. 14p.
Subjects: Photocatalysts, Heterostructures, Environmental remediation, Doped semiconductors, Manganese dioxide, Nanostructured materials, Photocatalysis, Anti-infective agents
Abstract: Pollutants can pose significant risks to ecosystems and human health. Removing such a perilous pollutant is essential for maintaining a healthy environment. Taking this into consideration, a new Ag–ZnO–g‐C3N4–MnO2 quaternary heterostructure was synthesized through the sol–gel approach. The structural, topological (morphological), surface area, optical, and electronic properties of the nanomaterials were characterized using X‐ray diffraction (XRD), scanning electron microscopy (SEM), high‐resolution transmission electron microscopy (HRTEM), and ultraviolet‐visible (UV). The relatively higher bandgap energies of the parent ZnO were significantly reduced from 3.11 to 2.31 eV, upon the formation of the composite, indicating the successful modification of the ZnO surface and optical property. The photocatalytic effectiveness of the as‐prepared materials was also explored. A high parentage (99%) of MB was degraded by Ag–ZnO–g‐C3N4–MnO2 composite compared with other pristine materials. This is owing to the incorporation of Ag, MnO2, and g‐C3N4 into the ZnO matrix. Furthermore, the antimicrobial efficacy of the composite was evaluated against the Staphylococcus aureus and Escherichia coli, demonstrating a superior inhibition zone (22.8 ± 0.36 at 80 g/mL) compared with others. The synergistic effects of the components enhanced charge separation, leading to improved photocatalytic and antimicrobial performance. Moreover, the stability of the composite was studied, demonstrating good photocatalytic stability. [ABSTRACT FROM AUTHOR]
Copyright of Advances in Materials Science & Engineering is the property of Wiley-Blackwell 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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  Data: Photocatalytic and Antimicrobial Studies of Ag‐Doped ZnO–g‐C<subscript>3</subscript>N<subscript>4</subscript>–MnO<subscript>2</subscript> Quaternary Heterostructure.
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  Data: <searchLink fieldCode="AR" term="%22Gindose%2C+Teketel+Girma%22">Gindose, Teketel Girma</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> girmatek2007@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Mothudi%2C+Bakang+M%2E%22">Mothudi, Bakang M.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kassa%2C+Muluneh+Endashaw%22">Kassa, Muluneh Endashaw</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zereffa%2C+Enyew+Amare%22">Zereffa, Enyew Amare</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Taddesse%2C+Abi+M%2E%22">Taddesse, Abi M.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mekonnen%2C+Kebede+Nigussie%22">Mekonnen, Kebede Nigussie</searchLink><relatesTo>5,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ebrahim%2C+Anwar+Kemal%22">Ebrahim, Anwar Kemal</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mtunzi%2C+Fanyana+M%2E%22">Mtunzi, Fanyana M.</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ndumiso%2C+Nxumalo+Edward%22">Ndumiso, Nxumalo Edward</searchLink><relatesTo>9</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ashebr%2C+Tesfay+G%2E%22">Ashebr, Tesfay G.</searchLink><relatesTo>5,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Atisme%2C+Tsegaye+Belege%22">Atisme, Tsegaye Belege</searchLink><relatesTo>5,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Suter%2C+Evans+K%2E%22">Suter, Evans K.</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dessalegn%2C+Tegene%22">Dessalegn, Tegene</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Habib%2C+Mohammad+Rezwan%22">Habib, Mohammad Rezwan</searchLink> (AUTHOR)<i> mohabib@wiley.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Advances+in+Materials+Science+%26+Engineering%22">Advances in Materials Science & Engineering</searchLink>. 6/19/2026, Vol. 2026, p1-14. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Photocatalysts%22">Photocatalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Heterostructures%22">Heterostructures</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+remediation%22">Environmental remediation</searchLink><br /><searchLink fieldCode="DE" term="%22Doped+semiconductors%22">Doped semiconductors</searchLink><br /><searchLink fieldCode="DE" term="%22Manganese+dioxide%22">Manganese dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Photocatalysis%22">Photocatalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Anti-infective+agents%22">Anti-infective agents</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Pollutants can pose significant risks to ecosystems and human health. Removing such a perilous pollutant is essential for maintaining a healthy environment. Taking this into consideration, a new Ag–ZnO–g‐C3N4–MnO2 quaternary heterostructure was synthesized through the sol–gel approach. The structural, topological (morphological), surface area, optical, and electronic properties of the nanomaterials were characterized using X‐ray diffraction (XRD), scanning electron microscopy (SEM), high‐resolution transmission electron microscopy (HRTEM), and ultraviolet‐visible (UV). The relatively higher bandgap energies of the parent ZnO were significantly reduced from 3.11 to 2.31 eV, upon the formation of the composite, indicating the successful modification of the ZnO surface and optical property. The photocatalytic effectiveness of the as‐prepared materials was also explored. A high parentage (99%) of MB was degraded by Ag–ZnO–g‐C3N4–MnO2 composite compared with other pristine materials. This is owing to the incorporation of Ag, MnO2, and g‐C3N4 into the ZnO matrix. Furthermore, the antimicrobial efficacy of the composite was evaluated against the Staphylococcus aureus and Escherichia coli, demonstrating a superior inhibition zone (22.8 ± 0.36 at 80 g/mL) compared with others. The synergistic effects of the components enhanced charge separation, leading to improved photocatalytic and antimicrobial performance. Moreover, the stability of the composite was studied, demonstrating good photocatalytic stability. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Advances in Materials Science & Engineering is the property of Wiley-Blackwell 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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        Value: 10.1155/amse/5469069
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        Text: English
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        PageCount: 14
        StartPage: 1
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      – SubjectFull: Photocatalysts
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      – SubjectFull: Heterostructures
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      – SubjectFull: Environmental remediation
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      – SubjectFull: Doped semiconductors
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      – SubjectFull: Manganese dioxide
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      – SubjectFull: Nanostructured materials
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      – SubjectFull: Photocatalysis
        Type: general
      – SubjectFull: Anti-infective agents
        Type: general
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      – TitleFull: Photocatalytic and Antimicrobial Studies of Ag‐Doped ZnO–g‐C3N4–MnO2 Quaternary Heterostructure.
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              Text: 6/19/2026
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