The present study successfully produced a highly effective and stable organ phosphorus-doped tungsten trioxide (P-WO3) photocatalyst by combination of hydrothermal postcalcination methods. crystallites, morphologies, optical properties the WO3 P-WO3 crystals were investigated. results indicated that P was consistently doped into lattice in pentavalent-oxidation state (P5+). Additionally, charge...

In perovskite solar cells (PSCs), the light-soaking effect, which means device performance changes obviously under continuous light illumination, is potentially harmful to loaded devices as well accurately assessing their efficiency. Herein, chemically stable tungsten trioxide (WO3) with high electron mobility used transport material in methylamine (MA)-free PSCs. However, effect observed appar...

A series of model-supported WO3 catalysts were synthesized on preformed Al2O3, Nb2O5, TiO2, and ZrO2 supports by impregnation of aqueous ammonium metatungstate, (NH4)10W12O41·5H2O. The molecular and electronic structures of the supported tungsten oxide phases were determined with in situ Raman and UV–vis spectroscopy, respectively. The supported tungsten oxide structures are the same on all oxi...

A series of supported WO3 catalysts were synthesized by incipient wetness impregnation of ammonium metatungstate aqueous solutions onto Al2O3, TiO2, Nb2O5, and ZrO2 supports as a function of tungsten oxide loading. The resulting solid acid catalysts were physically characterized with in situ Raman and UV–vis spectroscopy and chemically probed by methanol dehydration to dimethyl ether (CH3OH-TPS...

We report growth of tungsten diselenide (WSe2) nanotubes by chemical vapor deposition with a two-zone furnace. WO3 nanowires were first grown by annealing tungsten thin films under argon ambient. WSe2 nanotubes were then grown at the tips of WO3 nanowires through selenization via two steps: (i) formation of tubular WSe2 structures on the outside of WO3 nanowires, resulting in core (WO3)-shell (...

A facile and original approach based on a one-pot non-aqueous sol–gel solvothermal process was developed to synthesize 2D Tungsten trioxide (WO3) nanoplatelets with an average size ranging from 30 50 nm, correspondingly high surface area. The structural, morphological, functional group, optical properties of the materials, adsorption surfaces were all investigated; degree hydroxyls (–OH groups)...

The photocatalytic degradation of reactive blue 19 (RB19) dye was investigated in a slurry system using ultraviolet (UV) and light-emitting diode (LED) lamps as light sources magnetic tungsten trioxide nanophotocatalysts (?-Fe2O3/WO3 WO3/NaOH) photocatalysts. effects different parameters including irradiation time, initial concentration RB19, nanophotocatalyst dosage, pH were examined. also cha...

Proton and hydroxyl ion play an essential role for tuning functionality of oxides because their electronic state can be controlled by modifying oxygen off-stoichiometry and/or protonation. Tungsten trioxide (WO3), a well-known electrochromic (EC) material for smart window, is a wide bandgap insulator, whereas it becomes a metallic conductor HxWO3 by protonation. Although one can utilize electro...