Synthesis of Oxygen Deficient TiO2 for Improved Photocatalytic Efficiency in Solar Radiation

The photocatalytic activities of TiO2 have been limited mainly to absorbing in the ultraviolet spectrum which accounts for only 5% solar radiation. High energy band gap and electron recombination nanoparticles are responsible its limitations as a photocatalyst. An oxygen deficient surface can be artificially created on titanium oxide by zero valent nano iron through donation excess electrons. A visible light active nanoparticle was synthesized current investigation simple chemical reduction using sodium boro-hydride. physical textural properties photocatalyst measured scanning/ transmission microscopy while FTIR, XRD nitrogen sorption methods (BET) were employed further characterizations. Photochemical decoloration orange II dye solution presence an UV spectrophotometer. resulting has lower band-gap, smaller pore sizes, enhanced photo-catalytic properties. (88%) (II) salt (pH 2) under simulated possible at 20 min. This study highlights effect defects, crystal size band-gap photo-catalytical property impacted iron. It opens new window exploitation instability dopant ions creation