Synthesis of Titanium dioxide nanoparticles by sol-gel method for water remediation application

Abstract

Titanium dioxide is one of the effective photocatalysts used to degrade the harmful constituent of industrial pollutants in water. Thus, the primary goal of this study is to synthesize and characterize TiO2 nanoparticles for water remediation applications. The TiO2 nanoparticle (TNPs) is synthesized by the sol-gel method without surfactant. The physicochemical properties of the synthesized TNPs are analyzed by X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), and dynamic light scattering (DLS). The photocatalytic response of the TNP for methyl orange (MO) dye degradation is studied. Also, the antibacterial property of TNPs against E. coli and S. Aureus is investigated. The DLS result demonstrated that synthesized TNPs have a particle size of 121 nm. The XRD graph reveals the nanocrystalline anatase form of the TNPs. The characteristics peak of Ti-O-Ti bonds is observed between 400 to 850 cm-1 in the FTIR spectrum. The photocatalytic activity of TNPs is found to be 81.04%. In addition, TNPs exhibit suitable antibacterial properties against bacteria. The synthesized TNPs via the sol-gel method demonstrated good photodegradation and antibacterial properties, which confirm their potential use in water remediation applications.