Synthesis of ZnO-TiO2 Nanocomposites for the Enhancement of Antibacterial Properties
Authors
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Department of Physics, School of Engineering, Presidency University, Bangalore - 560064, India ,IN
K. S. Bhargavi -
Department of Physics, Presidency University, Bangalore-64 ,INAnindita Bose
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Department of Mechanical engineering, Presidency University, Bangalore - 560064, India ,INC. S. Ramesh
DOI:
https://doi.org/10.18311/jmmf/2023/35043Keywords:
Bactericidal Property of Metal Oxides, Sol-Gel Synthesis, ZnO - TiO2 NanocompositesAbstract
The sol-gel process was used to create ZnO-TiO2 nanocomposites with various weight percentages and studied for their antibacterial and optical properties. XRD and SEM analysis were used to analyze the structure and morphology of the obtained composite powders. Thus the resulting nanocomposites were examined for bacterial activities for the gram positive and gram negative bacteria’s like (a) Staphylococcus, (b) Bacillus subtilis (c) Salmonella typhi (d) Pseudomonas aeruginosa. The synthesized ZnO-TiO2 nanocomposites were found to be highly effective for 1% and 10% ZnO nano particles exhibit higher bactericidal activity with a high zone of inhibition of 8 mm, 11 mm against B. subtilis and 7 mm, 12 mm for S. aureus, 8 mm,10 mm for P. aeruginosa and 6 mm,10 mm for S. typhi bacterial strains. UV visible spectroscopy was used for optical studies and band gap measurement.
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