Sol–gel synthesized TiO2–CeO2 nanocomposite: an efficient photocatalyst for degradation of methyl orange under sunlight

Stabilized fabrication of anatase-TiO2/FeS2 (pyrite) semiconductor composite nanocrystals for enhanced solar light-mediated photocatalytic degradation of methylene blue

“…7 Despite the fact that the photocatalytic properties of TiO 2 nanocrystals are predominantly controlled by particle dimension, poorer photocatalytic degradation rates are experienced on the exterior surface of TiO 2 nanoparticles due to their extensive band gap and rapid recombination rate of photogenerated electron-hole pairs. 8 Consequently, the alteration of TiO 2 to decrease such recombination remains as a serious assignment. 9 A signicant contribution in this regard can be made by using an environmentally benign and sustainable material as a modier for TiO 2 as one of the preeminent modiers.…”

Investigation of oxygen vacancies in Ce coupled TiO 2 nanocomposites by Raman and PL spectra

“…There are several numbers of oxygen vacancies generated on the surface of the nanocomposites which promotes the number of active sites [23]. The CeO 2 -TiO 2 nanocomposites are mostly used in gas sensors, waste water treatment and water purification in the presence of light [24][25][26][27].…”

Understanding the Photocatalytic Properties of Pt/CeOx/TiO2: Structural Effects on Electronic and Optical Properties

“…Among all potential applications for this system, photocatalysis stands as the most promising. Ceria nanostructures (e. g. nanocomposites or nanotubes) on TiO 2 are widely applied to catalyse the reduction of nitro compounds, the photoreduction of CO 2 to methanol and methane degradation of organic contaminant or microorganism elimination . The photo‐catalytic behavior of the system seems to be strongly correlated to two factors: i) the interface between the two oxides .…”

“…[28] The photo-catalytic behavior of the system seems to be strongly correlated to two factors: i) the interface between the two oxides. [25,29,30] and ii) metals adsorption on its surface. [16] Near Edge X-Ray Absorption Fine Structure (NEXAFS) and UV-vis measurements have proved that the deposition of CeO x nanoparticles on TiO 2 is an efficient way to modify the chemical and electronic properties of both oxides.…”