Nowadays, hydrogen has attracted significant attention as a next generation clean energy source. Hydrogen is highly flammable, so detection of hydrogen gas is required. Gold nanoparticle based localized surface plasmon resonance (LSPR) is an advanced and powerful sensing technique, which is well known for its high sensitivity to surrounding refractive index change in the local environment. We p...

This study examined the theoretical impact and modelling of photocatalyst, WO3, on organic pollutant wastewater treatment. The electronic band structures, total density state, all optical properties, photocatalytic activities under UV or visible light were investigated by using first principle method for WO3 Ag doped 3% 6%. In order to calculate gap, generalized gradient approximation (GGA) bas...

Periodic DFT calculations are performed to unravel the effect of incorporation Fe and Mn into tungstated zirconia catalyst, (WO3)x/ZrO2 (x = 1,3), in their electronic, geometric, catalytic properties. Our results suggest that both have a proclivity occupy same positions thus metals will compete for adsorption sites. The addition or slightly destabilizes WO3 monomer while stabilizes (WO3)3 trime...

Photocatalytic removal of water and air pollution has received much attention today. Many photocatalysts based on semiconductors have been developed used. Binary even ternary composites to solve the drawback semiconductors, including high band gaps short life time charge carriers. In this study, a three-component composite TiO2/CuO/WO3 was synthesized by adding WO3 TiO2/CuO. Their structural pr...

Встановлено, що характер структуроутворення скла для системи K2O—P2O5—WO3—V2O5 визначається співвідношенням K/V і вмістом оксидів WO3 та V2O5. Синтез реалізовано за двостадійною схемою, включає гомогенізацію при 1000 оС відпал 300 оС. За даними ІЧ-спектроскопії досліджених зразків встановлено наявність фосфатних, ванадатних вольфраматних тетраедрів як каркасотвірних фрагментів. Також показано з...

Effluents from well-acclimated microbial fuel cells (MFCs) have been widely used as inocula to start up new MFC reactors. However, the actual cell concentrations and viability of exoelectrogens in these effluents not well examined. In this study, effluent acetate- or wastewater-fed MFCs were examined using a quantitative polymerase chain reaction (qPCR) method specific for Geobacter spp. that a...

This study aims to the radiation shielding features of TeO2–WO3–RO systems (where RO =PbO and Bi2O3). The glasses were theoretically evaluated by using simulation code Phy–X/PSD. Four TeO2–WO3–Bi2O3 three TeO2–WO3–PbO tested in this study. linear attenuation coefficient (LAC), mass (MAC), effective atomic number (Zeff), half value layer (HVL), tenth (TVL), mean free path (MFP) calculated analyz...