Synthesis, Characterization, and Antibacterial Properties of Surfactant Encapsulated Mn/Mg Co-doped Titania Nanoparticles

Iranian Journal of Catalysis

مقاله 3، دوره 13، شماره 4، اسفند 2023، صفحه 449-461   

نوع مقاله: Articles

شناسه دیجیتال (DOI): 10.30495/ijc.2023.1992163.2029

نویسنده

Sankara Rao Miditana^*

Department of Chemistry, Government Degree College, Puttur,517583, Tirupati, Andhra Pradesh, India

چکیده

The current research work was mainly focused on the antibacterial performance of Mn/Mg co-doped TiO₂ nanoparticles in presence of Gemini surfactant (GS). Mn, Mg co-doped TiO₂ nanoparticles were synthesized by sol-gel method and calcined at 450 ⁰C. The characterization results reveal that among all the co-doped TiO₂ and surfactant encapsulated TiO₂ nanoparticles, the MMT5-GS2 Nano catalyst exhibited the most favorable properties, featuring a small particle size, a large surface area, with respective values of 6.6 nm, 230.2 m²/g, and a bandgap of 2.66 eV. The efficiency of the synthesized catalysts was examined by the antibacterial activity of Escherichia coli (E. coli) and Klebsiella pneumonia pathogens. Among all the catalysts, MMT5-GS2 demonstrated the best performance. The zone of inhibition of bacterial growth for E. coli and Klebsiella pneumonia was measured to be (33.1±0.12 mm) and (26.1±0.12 mm) respectively, at a concentration of 400 µg/mL. These values are significantly higher than the standard value of (chloramphenicol-16.71±0.2) at 100 µg/mL, indicating the remarkable efficacy of the MMT5-GS2 nanocatalyst. The co-doped nano titania particles encapsulated with surfactant have great potential as antibacterial agents.

کلیدواژه‌ها

Antibacterial activity؛ E. coli؛ Gemini surfactant؛ Sol-gel method؛ Visible light

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