Pooja Rajput*, Sumita Dasgupta, Mousumi Chakraborty, Shilpa Nandwani, Murtaza Hajoori

Author(s): GREEN SYNTHESIS OF TITANIUM DIOXIDE NANOPARTICLES (TIO2 NPS) USING LEAF EXTRACT OF DATURA INNOXIA

Abstract: Introduction: A cost effective and environment benign technique is developed for the synthesis of Titanium dioxide nanoparticles (TiO2 NPs) using the aqueous leaf extract of Datura innoxia which act as a reducing and stabilizing agent. Materials and Method: The prepared Titanium dioxide nanoparticles were characterized using dynamic light scattering (DLS), ultraviolet–visible spectroscopy (UV-Vis), transmission electron microscopy (TEM) and Fourier-transform infrared spectroscopy (FTIR). The synthesized nanoparticles were tested against four different bacterial species. 2, 2-Diphenyl-1-Picryl-Hydrazyl-Hydrate (DPPH) assay was carried out to evaluate the antioxidant potential of the synthesized TiO2 NPs. Results: TEM study showed the formation of hexagonal shaped TiO2 NPs with average size ranging from 36-42 nm. The FTIR spectrum indicated the role of nitro compounds and O-H group in the synthesis of TiO2 NPs. The synthesized TiO2 NPs were found to be maximum effective against Bacillus cereus and Proteus vulgaris. Maximum of 81% DPPH radical scavenging activity was exhibited by the TiO2 NPs. Conclusion: This simple, low cost, eco-friendly method for synthesizing stable TiO2 NPs provides a valuable alternative approach for large scale synthesis.

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