Journal
CATALYSTS
Volume 11, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/catal11060709
Keywords
nanoparticles; titanium dioxide; photocatalyst; antibacterial; water treatment
Categories
Funding
- Higher Education Commission of Pakistan (HEC) under National Research Program for Universities (NRPU) [10928]
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Titanium dioxide nanoparticles were synthesized using a hydrothermal method and tested for antibacterial and catalytic properties. They showed the highest antibacterial activity against Gram-negative bacteria and effectively removed the BPB dye through photocatalysis. These properties suggest their potential for environmental remediation applications.
Titanium dioxide nanoparticles (TiO2-NPs) were synthesized via a facile hydrothermal method. X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared (FTIR), and Raman spectroscopy were used to study the structure, morphology, chemical composition, and functional group attached to the as-synthesized TiO2-NPs. These NPs were then used to test their efficacy against various microbes and their potency as effective catalysts. TiO2-NPs are found to have the maximum antibacterial activity against Gram-negative bacterial strains rather than Gram-positive bacteria. The photocatalytic activity of the TiO2-NPs was investigated for the photodegradation of 10 ppm bromophenol blue (BPB) dye by using 0.01 g-0.05 g of catalyst. TiO2-NPs exhibited the removal of 95% BPB, respectively, within 180 min. The TiO2-NPs' antibacterial and catalytic properties suggest that these may be used in environmental remediation as a cost-effective and environmentally friendly wastewater and air treatment material.
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