Photocatalytic Performance of Sn–Doped TiO2 Nanopowders for Photocatalytic Degradation of Methyl Orange Dye

The tin-doped TiO2 powders obtained by sol-gel and microwave-assisted methods were investigated. synthesis took place in a basic medium (pH 10, ammonium hydroxide, 25%) starting from tetrabutyl orthotitanate its parental alcohol. In the case of dopant, Tin(II) 2-ethylhexanoate as SnO2 precursor was used amount 1, 2, or 4 mol % SnO2. Based on thermal analysis data, thermally treated air, at 500 °C. comparative investigation structure morphology nanopowders annealed °C performed scanning electron microscopy (SEM), high-resolution transmission with selected area diffraction (HRTEM/SAED), (STEM) coupled EDX mapping, Fourier infrared (FTIR), UV–Vis, Raman photoluminescence (PL) spectroscopy, X-ray (XRD), florescence spectroscopy (XRF). materials tested for photocatalytic removal methyl orange dye aqueous solutions. High degradation efficiencies (around 90%) Sn doping after 3 h UV light irradiation.