Synthesis of three-dimensional photocatalysts offers great potential for chemical conversion and hydrogen generation as appropriate solutions environmental protection energy shortage challenges. In this study, the magnetic WO3–x@mesoporous carbon (M-WO3–x@MC) was synthesized through evaporation-induced self-assembly method applying diatom frustules a natural template. Then, plasma modification ...

Inorganic metal oxides have shown potential as matrices for assisting in laser desorption ionization with advantages over the aromatic acids typically used. Rhenium and tungsten oxides are attractive options due to their high work functions and relative chemical inertness. In this work, it is shown that ReO3 and WO3 , in microparticle (μP) powder forms, can efficiently facilitate ionization of ...

We have explored the impact of the incorporation of nanoporous carbons as additives to tungsten oxide on the photocatalytic degradation of two recalcitrant pollutants: rhodamine B (RhB) and phenol, under simulated solar light. For this purpose, WO3/ carbon mixtures were prepared using three carbon materials with different properties (in terms of porosity, structural order and surface chemistry)...

This study reports the synthesis and characterization of tungsten trioxide-based catalysts for photocatalytic degradation N-nitrosodiethylamine (NDEA) in wastewater. Tungsten trioxide (WO3) was synthesized using thermal treatment method (TTM) hard template replication (HTRM) impregnated with lanthanum (La), iron (Fe), chromium (Cr), silver (Ag) to enhance its light absorption ability. The were ...

Composite materials, which can optimally use the advantages of different materials, have been studied extensively. Herein, hybrid tungsten nitride and oxide (WN/WO3) composites were prepared through a simple aqueous solution route followed by nitriding in NH3, for application as novel sensing materials. We found that the introduction of WN can improve the electrical properties of the composites...

Potassium ions are successfully intercalated into WO3 nanobundles with the integrity of the pseudo-orthorhombic structure remaining intact. The nanobundles display a 5-fold increase in the electrical conductivity. It changes from a value of 10(-4) Sm(-1) for pure WO3 to 40 Sm(-1) upon potassium intercalation. The electrical conductivity also increases by ~200 times as temperature increases from...

Hydrocarbons and carbon oxides are typical dissolved gases in transformer oil that reflect the latent pitfalls, on-line monitoring of their concentrations can effectively evaluate operating status power transformer. However, these low-concentration targets (especially for CH4) show high chemical inertness at room temperature, challenging sensitive performance current commonly used chemiresistiv...

INTRODUCTION Penicillin G (PG) is used in a variety of infectious diseases, extensively. Generally, when antibiotics are introduced into the food chain, they pose a threat to the environment and can risk health outcomes. The aim of the present study was the removal of Penicillin G from an aqueous solution through an integrated system of UV/ZnO and UV/WO3 with Ultrasound pretreatment. METHODS ...

Background: In recent years, there has been an increased interest toward non-lead radiation shields consisting of small-sized filler particles doped into polymer matrices. In this paper, we study a new polyvinyl alcohol (PVA)/WO3 composite in the presence of high-energy gamma photons through simulation via the Monte Carlo N-Particle (MCNP) simulation code. Materia...