The photocatalytic degradation of Diamond green B, a triarylmethane dye, has been investigated in aqueous heterogeneous solutions containing TiO2 nano- particles as photocatalysts. The factors effective on the degradation of Diamond green B, such as the amount of catalyst, the original concentration of dye, the effect of pH and illumination time were investigated under 400 W high pressure mercu...

Synthetic fuels are needed to replace their fossil counterparts for clean transport. Presently, production is still inefficient and costly. To enhance the process of methanol from CO2 H2 reduce its cost, a particle-resolved numerical simulation tool presented. A global surface reaction model based on Langmuir-Hinshelwood-Hougen-Watson kinetics utilized. The approach first validated against stan...

The lipid fraction of birch pollen grains (BPGs) is not yet fully described, although molecules may play a role in the allergic immune response. mechanisms by which atmospheric pollutants modify allergenic (PGs) are also far from being elucidated despite high potential effects on sensitization. This work contribution to better description profile (both external and cytoplasmic) BPGs alterations...

This research investigated the water influence on biodiesel production via transesterification, and especially their kinetic parameters. The initial rate of transesterification was increased with increasing amount (0–5 wt%). On contrary, significantly reduced for concentration 8–15 wt%. Moreover, when yield reached maximum value 30–40%, saponification as a side reaction became more significant ...

ZnO- nanoparticles with an average particle size of 24 nm were successfully synthesized using the microwave assisted sol- gel technique. Structural and morphological properties of the nanoparticles were characterized by X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Energy disperse spectrum (EDS) and Fourier transform infrared spectroscopy (FTIR). The band gap ene...

The total oxidation of toluene at a wide temperature range (200–500 oC) over micro/mesoporous platinated catalysts has been investigated about activity, selectivity to CO2 and CO, catalyst's stability versus coke deposition and reaction kinetics. Kinetic of toluene oxidation was measured under various oxygen and toluene pressures and als...

In this work, growth and assembly of the micro polyhedral zinc oxide was performed using airbubble assisted Triton X100, as a templating agent. In absence of air bubbling in the reactionsystem the nano plate zinc oxide was synthesized. The prepared samples were characterized by Xraydiffraction (XRD), field emission scanning electron microscopy (FE-SEM) and UV-Visspectrop...

The present study focuses on clinoptilolite (CLI)-rich natural zeolitic tuffs and their photocatalytic activity in the degradation of cationic organic dyes. CLI from different regions was tested methylene blue (MB) as a model dye. tests were performed at room temperature atmospheric pressure under visible light irradiation. For all samples, highest observed pH = 6. Total MB varied between 70 91...