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<p>The molybdenum doped mixed metal oxides such as zinc and cobalt (Mo/ZnCo<sub>2</sub>O<sub>4</sub>) were synthesized in a simple hydrothermal procedure that required no use of an expensive and toxic solvent but it exhibited the low photocatalytic efficiency. As-produced Mo/ZnCo<sub>2</sub>O<sub>4</sub> were hybridized with reduced rGO to form Mo/ZnCo<sub>2</sub>O<sub>4</sub>/rGO nanoarray to remove above mentioned issues. Methylene blue (MB) was used in photocatalytic research because it is a common organic contaminant and create very detrimental effect on the living and environmental components. Degradation percentages for ZnCo<sub>2</sub>O<sub>4</sub>, Mo/ZnCo<sub>2</sub>O<sub>4</sub>, and Mo/ZnCo<sub>2</sub>O<sub>4</sub>/rGO nanocomposites were determined to be 41.17, 78.45 and 91.47%, respectively. As per the findings, the aqueous MB dye underwent oxidation primarily due to the presence of the superoxide (<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11270_2025_7927_Article_IEq1.gif" Format="GIF" Height="20" Rendition="HTML" Resolution="72" Type="Linedraw" Width="32" /> </InlineMediaObject> <EquationSource Format="TEX">\({O}_{2}^{\bullet -}\)</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mi>O</mi> <mrow> <mn>2</mn> </mrow> <mrow> <mo>∙</mo> <mo>-</mo> </mrow> </msubsup> </math></EquationSource> </InlineEquation>) radical. The nanocomposite photocatalysts exhibited photodegradation efficiency exceeding 91.47% and displayed remarkable stability, as evidenced by the absence of any noticeable decline in activity indicated by the repeatability test (five cycles). Furthermore, Mo/ZnCo<sub>2</sub>O<sub>4</sub>/rGO displays excellent antimicrobial activity toward the S.aureus and E.coli species. Our finding suggests that the Mo/ZnCo<sub>2</sub>O<sub>4</sub>/rGO nanostructure can act as a potential antimicrobial and photocatalytic agent.</p>

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Investigation of Photocatalytic and Antibacterial Study of Mo doped ZnCo2O4/rGO Nanohybrid Under Visible Light

  • 期刊论文

  • 发表日期：

    2025年4月12日

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  • Maria Zulfiqar,
  • Gaber A. M. Mersal,
  • Ahmed M. Fallatah,
  • Mohamed M. Ibrahim,
  • Hafiz Muhammad Tahir Farid,
  • Muhammad Aslam,
  • Zeinhom M. El-Bahy

摘要

The molybdenum doped mixed metal oxides such as zinc and cobalt (Mo/ZnCo2O4) were synthesized in a simple hydrothermal procedure that required no use of an expensive and toxic solvent but it exhibited the low photocatalytic efficiency. As-produced Mo/ZnCo2O4 were hybridized with reduced rGO to form Mo/ZnCo2O4/rGO nanoarray to remove above mentioned issues. Methylene blue (MB) was used in photocatalytic research because it is a common organic contaminant and create very detrimental effect on the living and environmental components. Degradation percentages for ZnCo2O4, Mo/ZnCo2O4, and Mo/ZnCo2O4/rGO nanocomposites were determined to be 41.17, 78.45 and 91.47%, respectively. As per the findings, the aqueous MB dye underwent oxidation primarily due to the presence of the superoxide ( \({O}_{2}^{\bullet -}\) O 2 ∙ - ) radical. The nanocomposite photocatalysts exhibited photodegradation efficiency exceeding 91.47% and displayed remarkable stability, as evidenced by the absence of any noticeable decline in activity indicated by the repeatability test (five cycles). Furthermore, Mo/ZnCo2O4/rGO displays excellent antimicrobial activity toward the S.aureus and E.coli species. Our finding suggests that the Mo/ZnCo2O4/rGO nanostructure can act as a potential antimicrobial and photocatalytic agent.