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‐C |
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| 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] |
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| Database: | Engineering Source |
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| 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] |
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| ISSN: | 16878434 |
| DOI: | 10.1155/amse/5469069 |
