Extending the absorption range of TiO2 nanofibers to visible light is a great improvement photocatalytic property TiO2. In this study, TiO2/WO3/C/N were prepared by electrospinning using precursors soluble in water then annealing argon. Titanium(IV) bis(ammonium lactato)dihydroxide (TiBALDH) and ammonium metatungstate (AMT) used as precursor for WO3 respectively. Different volume ratios added s...

We report the construction of 2D/1D heterojunction photocatalysts through hydrothermal growth WO3 nanosheets on TiO2 nanoribbons for first time. Two-dimensional were vertically arrayed surface nanoribbons, and density could be simply controlled by adjusting concentration precursors. The WO3/TiO2 heterojunctions not only decreases band gap energy from 3.12 to 2.30 eV broadens photoresponse range...

The design of a semiconductor or composite system—with applications in materials science—is complex because its morphology and structure depend on several parameters. These parameters are the precursor type, solvent, pH solution, synthesis approach, shaping agents. This study gives meaningful insight regarding such WO3 materials. By systematically alternating (sodium tungstate dihydrate—NWH, am...

Developing highly efficient Au/TiO2/WO3 heterostructures with applications in heterogeneous photocatalysis (photocatalytic degradation) and surface-enhanced Raman spectroscopy (dye detection) is currently of paramount significance. were obtained via heat or time-assisted synthesis routes developed by slightly modifying the Turkevich–Frens methods investigated TEM, SEM, XRD, spectroscopy, XPS, p...

New mesoporous and well-structured aerogel catalysts (CeO2–TiO2, WO3–TiO2 WO3–CeO2–TiO2) were elaborated via the sol–gel method, characterized by means of various techniques (XRD; N2-Physisorption at 77 K; NH3-TPD; H2-TPR; DRUV–Vis spectroscopy) evaluated in selective catalytic reduction (SCR) NO NH3. The results reveal that all develop essentially diffraction peaks TiO2 anatase phase are class...

Among transition metal oxides, tungsten trioxide is one of the most interesting materials exhibiting a wide variety of novel properties particularly in thin film form useful for advanced technological applications. It exhibits structural transformations and substoichiometric phase transitions, which attracted the attention of researchers over the past few years to explore their potential scient...

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...

Urchin-like micro/nano heterostructure Au@CdS/WO3 was synthesized by using a facile photodeposition method with no need for an additional stabilizer, which can be used as an efficient all-solid Z-scheme visible-light photocatalyst for H2 generation with a high H2 evolution rate.

In this study, WO3:Ni (0 at.%, 10 20 and 30 at.%) WO3:Co20 at.%: Ni (0%, 5%, 10%, 20%, 30%) thin films were deposited on glass substrates by pyrolysis spray technique then annealed at T = 500 °C. For the preparation of films, initial solution 0.1 M tungsten oxide precursors nickel sulfate 6-hydrate cobalt chloride used. After preparing effect presence impurities structural, morphology, optical ...

• Aqueous WO 3 nanoparticle (NP)-based electrochromic inks are fabricated. Polyvinyl alcohol (PVA) is added to ink improve its adhesion substrates. Contact angle of the NP decreases with increasing PVA content. /PVA films exhibit properties in visible and infrared ranges. The optimal content show high optical switching speeds. Nanotechnology has advanced rapidly recent years, mainly due unique ...