Reversible redox behavior of Fe2O3/TiO2 composites in the gaseous photodegradation process

Two Birds with One Stone: Copper-Based Adsorbents Used for Photocatalytic Oxidation of Hg0 (Gas) after Removal of PH3

“…From Figure h, the peaks at 100.9, 103.2, and 104.9 eV were all attributed to Hg 2+ , so the mercury is mainly present on the surface of the sample in the form of mercury oxide. It can be concluded that the De-Cu 30 /TiO 2 sample can photocatalytically oxidize zero-valent mercury to a less toxic product when illuminated . The three O 1s peaks of De-Cu 30 /TiO 2 before and after the reaction are very similar, but the O 1s peak of De-Cu 30 /TiO 2 after the removal of Hg 0 moves 0.2 eV toward the direction of high BE, indicating that charge transfer to the electron acceptor occurs during the reaction (Figure i).…”

Heterostructured TiO2/SiO2/γ-Fe2O3/rGO Coating with Highly Efficient Visible-Light-Induced Self-Cleaning Properties for Metallic Artifacts

“…The strength of the chemical bond is stronger than that of van der Waals forces and other physical forces, so the coating of nano-TiO 2 on a SiO 2 surface is stable . The TiO 2 @Si:Fe nanoparticles then lie on the sheets of rGO. , …”

“…19 The TiO 2 @Si:Fe nanoparticles then lie on the sheets of rGO. 20,21 The final sol produced, TiO 2 @Si:Fe:rGO and the intermediate sols TiO 2 , TiO 2 @Si, and TiO 2 @Si:Fe were then applied to metallic substrates, consisting of commercial purity titanium specimens, grade 2 ASTM, with dimensions 50 mm × 50 mm and thickness 0.5 mm. All specimens were coated in the TiO 2 @Si:Fe:rGO sol with the dipcoating method.…”

Effect of iron doped titanium oxide encapsulated in alginate on photocatalytic activity for the removal of dye pollutants

“…These results were in agreement with other work already done with the aim of doping TiO 2 with iron oxides. 5,18 An accurate determination of the band gap energy is also necessary because it is a decisive characteristic in terms of determining the electronic structure of materials especially in the case of doping. It is also important that the type of band-toband transition in these synthesized catalysts should be established.…”