Pd−Au bimetallic catalysts have shown promising performance in numerous reactions that involve hydrogen. Fundamental studies of hydrogen interactions with Pd−Au surfaces could provide useful insights into the reaction mechanisms over Pd−Au catalysts, which may, in turn, guide future catalyst design. In this study, the interactions of hydrogen (i.e., adsorption, absorption, diffusion, and desorp...

A multimode, dual functional nanomaterial, CNTs-Ag2S, comprised of carbon nanotubes (CNTs) and silver sulfide (Ag2S) nanoparticles, was prepared through the facile hydrothermal process. Before deposition Ag2S hydrophobic CNTs were modified to become hydrophilic refluxing with a mixture concentrated nitric sulfuric acids. The oxidized employed deposit nanoparticles for their efficient immobiliza...

In this research, Carbon-doped TiO2 nano-photocatalyst is synthesized via sol-gel technique and photo-catalytic degradation of phenol has been studied under ultraviolet and visible light irradiation in a fluidized bed reactor. Various techniques are used to characterize TiO2 nano-photocatalyst such as X-Ray Diffraction, Fourier transform infrared spectroscopy,  Energy Disp...

Untreated effluents especially in discharges from textiles and fabric industries, usually contain dyes. Synthetic dyes have adverse effects on all forms of life when discharged directly into the environment. This paper investigates photo-degradation a mixture direct orange 39, chlorantine fast red 5B, Viscose Black B sky blue K, present real textile effluent based influence ZnO photocatalyst do...

The purpose of this study is to develop an experimental data-based char particle gasification model in order assess the effects size, temperature and generation heating rate on global parameters. Also, effect initial porosity observed by performing parametrical numerical simulations. A continuum-based used solve inside a within external boundary layer. intrinsic CO2 reaction computed according ...

Parameters from single-component isotherm models were used in multicomponent isotherm models to predict the aqueous phase sorption of trichloroethylene (TCE) in the presence of tetrachloroethylene (PCE) in four zeolites, Tenax, and three natural solids. The Langmuir, the Polanyi-Dubinin, and the Freundlich or the Langmuir-Freundlich isotherm models were used to simulate single-component sorptio...

The kinetics of photocatalytic degradation aniline, 2-chloroaniline, and 2,6-dichloroaniline in the presence halloysite-TiO2 halloysite-Fe2O3 nanocomposites, halloysite containing naturally dispersed TiO2, Fe2O3, commercial P25, ?-Fe2O3 photocatalysts, were investigated with two approaches: Langmuir–Hinshelwood first-order equations. Adsorption equilibrium constants adsorption enthalpies, photo...