Enhanced photocatalytic and photoelectrochemical properties of TiO2 nanorod arrays sensitized with CdS nanoplates

Modification of 1D TiO2 nanowires with GaOxNy by atomic layer deposition for TiO2@GaOxNy core–shell nanowires with enhanced photoelectrochemical performance

“…2(b)and (c). In addition, the aspect ratio of (110) facet also provides favorable conditions for uniform deposition of GaOxNy, which is consistent with our previous reports21,39 .When we run 100, 200, 300, 400 and 500 cycles PE-ALD cycles, the thicknesses of GaOxNy samples measured from SEare 4.97, 9.12, 14.41, 18.49, and 26.71 nm, respectively. The apparent thickness is therefore linear with the number of PE-ALD cycles.…”

Platinum and Iridium Oxide Co-modified TiO2 Nanotubes Array Based Photoelectrochemical Sensors for Glutathione

“…Figure 3a shows that the sample contained Ti, O, Pt and Ir, indicating successful deposition of Pt and IrO2 on the TiO2NTs, consistent with the EDS results. In Figure 3b, two peaks at BE of 464.0 eV and 458.5 eV in Pt-IrO2/TiO2NTs/Ti were assigned to Ti2p1/2 and Ti2p3/2 respectively, indicating the existence of Ti 4+ in TiO2 [14,39,40]. In Figure 3c, the peak at BE of 529.5 eV was assigned to Ti-O [41].…”

“…Diverse nanomaterials, such as Au [8], ZnO [9,10], CdS [11,12], TiO 2 [13,14], and porphyrin [15,16], have been exploited as electrodes. Among them, TiO 2 nanomaterials have been widely investigated due to their high PEC activity, stable performance, good biological compatibility, and obvious surface effect [17][18][19].…”

Construction of Ag-modified TiO2/ZnO heterojunction nanotree arrays with superior photocatalytic and photoelectrochemical properties

“…1,2 However related reports show that in a single semiconductor, the recombination of electron-hole pairs occurs very rapidly, which signicantly reduces the photocatalytic efficiency of these materials and makes them difficult to use. [3][4][5][6] For nearly a decade, in order to increase photocatalytic activity by promoting the separation of photoexcited charges or improving the surface of photocatalysts, various strategies have been employed. For example, suitable structural designs, ion doping, and the formation of semiconductor heterojunctions by combining with metals or other semiconductors.…”