An Amalgam of Mg-Doped TiO2 Nanoparticles Prepared by Sol–Gel Method for Effective Antimicrobial and Photocatalytic Activity

In this study, undoped and Magnesium doped TiO2 nanoparticles (Mg-TiO2 NPs) are successfully synthesized via a simple sol–gel method cost-effectively. The prepared Mg- NPs is characterized by UV–Vis, FTIR, PL, XRD, FESEM, TEM, EDAX. UV–Visible Spectroscopy showed that an increase in the optical bandgap concerning concentration of dopant Mg increases. values were found to be 3.57–3.54 eV. FTIR spectra shows presence characteristic stretching bending vibrational band Ti–O bonding at 468 cm−1 shifts bands observed for Mg-TiO2 NPs. PL different concentrations exhibit strong UV emission band. X-ray diffraction confirmed formation tetragonal anatase phase. average crystallite size samples was 22–19 nm. decreases with increasing Mg. FESEM TEM analysis spherical morphology both SAED pattern confirms crystalline nature samples. EDAX confirm Ti, O, Mg2+ ions present lattices. investigated against gram-positive gram-negative bacteria. potent antibacterial activity bacteria than significant photocatalytic degradation Methylene blue (MB).