Abstract Catalysts based on Pd/In were prepared through the wet impregnation method using Al2O3, SiO2, and TiO2 as supports. The impact of synthesis procedure N2 selectivity was studied. Characterization performed X-ray fluorescence scanning electron microscopy–energy dispersive spectroscopy analysis. catalytic performance these materials evaluated for nitrate removal from water in a batch reac...

A multitude of nanoparticles, such as titanium oxide (TiO2), zinc oxide, aluminum oxide, gold oxide, silver oxide, iron oxide, and silica oxide, are found in many chemical, cosmetic, pharmaceutical, and electronic products. Recently, SiO2 nanoparticles were shown to have an inert toxicity profile and no association with an irreversible toxicological change in animal models. Hence, exposure to S...

This work examined the influence of dual incorporation MoO2 and SiO2 on corrosion behavior pure titanium treated via plasma electrolytic oxidation (PEO). To achieve this purpose, substrate was PEO in an alkaline-molybdate electrolyte without with nanoparticles. The microstructural observation revealed that addition nanoparticles into during helped to seal structural defects coating so a rougher...

We present an approach to selectively examine asymmetric potential in the buried layer of solar cell devices by means nonlinear x-ray spectroscopy. Detecting second harmonic generation signals while resonant SiO2 core level, we directly observe existence band bending effect nanolayer, heterostructures Al/LiF/SiO2/Si, TiO2/SiO2/Si, and Al2O3/SiO2/Si. The results demonstrate high sensitivity meth...

a novel zr,ce-tio2/sio2 nanocomposite thin film was successfully prepared with various amounts of zr4+ and ce4+ as codopant ions for self-cleaning applications. a thin film was coated on a tile substrate by dip-coating and porous zr,ce-tio2/sio2 was obtained after heat treatment for 2 hours at 500 °c. the sem images and xrd pattern showed that the optimum amount of doping ions in relation to ti...

The paper presents a modification of titanium dioxide with fumed silica. SiO2/TiO2 photocatalysts were obtained by the sol-gel method and then calcined under an argon atmosphere. Various SiO2 weights (2–17.2 wt.%) used in materials’ preparation stage. samples characterized using advanced analytical methods, such as FT-IR/DRS infrared spectroscopy, X-ray diffraction, SEM scanning electron micros...

We examine several issues related to peridotite partial melting by composition (Na2O decreases, CaO/Al2O3 increases) are similar to the effects of increasing total extent of melting of a fixed source performing thermodynamic calculations using the MELTS algorithm. composition, and the two phenomena may therefore be difficult to MELTS calculations suggest that the high alkali content of neardisc...