Sol-Gel Obtaining of TiO2/TeO2 Nanopowders with Biocidal and Environmental Applications

TiO2/TeO2 powders were obtained by an aqueous sol-gel method. Telluric acid (H6TeO6) and titanium butoxide used as precursors. The as-prepared gel was step-wisely heated in the temperature range 200–700 °C subsequently characterized XRD, IR, UV-Vis analysis SEM. Mixtures containing TiO2 (anatase), α-TeO2 (paratellurite), TiTe3O8 established XRD final products, depending on heating temperature. thermal stability of gels 100–400 investigated. It found IR spectroscopy that samples up to 300–400 consist mainly organic–inorganic amorphous phase which is transformed into inorganic one above these temperatures. microstructure verified scanning electron microscopy (SEM). photocatalytic degradation synthesized nanopowders toward Malachite green organic dye (MG) examined order evaluate potential applications for environmental remediation. prepared showed 60% decoloration efficiency after 120 min exposure UV-light. composition exhibited good antimicrobial activity against E. coli K12. properties material investigated reactions complete catalytic oxidation different alkanes toluene, it could be suggested are promising use active catalysts.