Photocatalytic degradation of methylene blue by TiO2–Cu thin films: Theoretical and experimental study

The study of microstructure, optical and photocatalytic properties of nanoparticles(NPs)-Cu/TiO2 films deposited by magnetron sputtering

“…Nevertheless, the enhanced photocatalytic efficiency by Cu nanoparticles doping compared with pure TiO 2 film in our case (13.51% in 6 h) is relatively low in comparison with most of the reported metal-Nps/TiO 2 composite films [17,19,27,29]. This may result from the CueO bond formed at the interface of Cu and TiO 2 as mentioned above, which is adverse to the photogenerated carriers separation.…”

“…By comparison, the microstructural, optical absorption properties and photocatalytic activity of Cu nanoparticle embedded TiO 2 films is studied insufficiently due to the oxidative nature and diffusion to TiO 2 of Cu [19]. Our research group previously demonstrated the possibility of synthesizing Nps-Cu/SiO 2 multilayer films utilizing the double target alternate sputtering system [20], hence the same hardware setup is expected to prepare Cu nanoparticles embedded TiO 2 films in this paper.…”

Effect of incorporating copper on resistive switching properties of ZnO films

“…1(b), it can be seen that the copper element is present in ZnO:Cu films but not in ZnO, just as expected. The peaks at 932.44 and 951.43 eV is corresponding to Cu 2p 3/2 and Cu 2p 1/2 , while the energy separation of 19 eV is the typical character of spin-orbit interaction [14]. From the AFM images of ZnO and ZnO:Cu films, as shown in Fig.…”

The advanced removal of benzene from aerosols by photocatalytic oxidation and adsorption of Cu–TiO 2 /PU under visible light irradiation

“…5) [42,43]. The formation of Ti 3+ in the Cu-TiO 2 /PU could be due to the effect of the Cu dopant, which defected the TiO 2 lattice.…”