Synthesis of TiO2 Nanoparticles by Hydrothermal Method and Characterization of their Antibacterial Activity: Investigation of the Impact of Magnetism on the Photocatalytic Properties of the Nanoparticles

TiO2-NPs were proven to be effective antibacterial agents.In this work,hydrothermal processing was used to synthesize TiO2-NPs and their photocatalytic, antibacterial activities were investigated.In addition, this research is explored the effects of magnetic field in the hydrothermal synthesis of TiO2-NPs.FE-SEM,UV-VIS,EDX andXRD were used to analyze the TiO2-NPs.The use of a magnetic field in the hydrothermal synthesis of TiO2-NPs (Treated) has led to the successful formation of TiO2 nano rode in shape compared with untreated particles (No magnetic field) which exhibit no definite shape.Antibacterial activities were performed against two of the most important bacteria strains that cause disease in humans: S. aureus and E. coli.The treated TiO2-NPs exhibited enhanced antibacterial activity when compared with untreated TiO2-NPs samples.The treated TiO2-NPs show a greater efficacy on antibacterial properties compared to the untreated TiO2 NPs. In addition, the photocatalytic activity of TiO2-NPs has been investigated by applying the photodegradation of the methylene blue (MB) method using UV light under neutral conditions.The findings have proved that the degradation efficiency of MB dye in an aqueous solution has been affected by the irradiation time.Also, treated TiO2-NPs had a high photodegradation efficiency of 96% of the dye after 3 hours compared with untreated samples recorded at only 21%