Hydrothermal preparation and photocatalytic activity of mesoporous Au–TiO2 nanocomposite microspheres

A review on plasmonic metal⿿TiO2 composite for generation, trapping, storing and dynamic vectorial transfer of photogenerated electrons across the Schottky junction in a photocatalytic system

“…Finally all these excited electrons migrate to the deposited Pt nanoparticles to react with the adsorbed H + ions to form H 2 . The Pt on TiO 2 nanosheets induces a Schottky barrier, which facilitates electron capture while the accumulated holes in the CdS VB leads to the oxidative decomposition of lactic acid or any other pollutant [80,81]. However, under visible light irradiation only CdS nanoparticles with low band gap gets photoexcited to produce electrons in CB and holes in the VB, respectively.…”

Multiferroic Ni0.6Zn0.4Fe2O4-BaTiO3 nanostructures: Magnetoelectric coupling, dielectric, and fluorescence

“…In case of BT, the charge transfer spectra from the central Ti 3þ ion to a neighbouring O 2À ion inside octahedron of TiO 8À 6 from intrinsic defects result into luminescence in the BT system. 37 While in case of NZF ferrite, first blue band observed is due to interstitial and defect emission, while system corresponding second band is due to their phase formation. 38 Composite HNZF/BT via hydrothermal synthesis shows remarkable high intensity of blue, green, yellow, and red band emissions than CNZF/BT.…”

Visible light photocatalytic activity of TiO2/heat‐treated PVC film

“…When the TiO 2 /HTPVC film is irradiated under visible light, the HTPVC film with a conjugated structure can easily absorb photons to induce a π -π * transition state and then produce electron/hole pairs. Some photogenerated electrons will be readily injected into the conducting band (CB) of TiO 2 because the energy of the photogenerated electrons matches well with that of the conducting band of TiO 2 , and these electrons in the conducting band of TiO 2 With the mass content of TiO 2 in the composite films increasing, the probability for injection of the photogenerated electrons in HTPVC into the conducting band of TiO 2 can increase. Therefore, the separating efficiency of the photogenerated holes and electrons can be improved.…”

“…It is indicated that there is no unsaturated bonds for PVC film. However, TiO 2 /HTPVC films show the strong absorption from 400 nm to about 800 nm, and their absorbance in the visible light range is much higher than those of the neat TiO 2 improving the visible light photocatalytic activity of TiO 2 /HTPVC film.…”