Endocrine disruptors in water are contaminants of emerging concern due to the potential risks they pose to the environment and to the aquatic ecosystems. In this study, a solar photocatalytic treatment process in a pilot-scale compound parabolic collector (CPC) was used to remove commercial estradiol formulations (17-β estradiol and nomegestrol acetate) from water. Photolysis alone degraded up ...

In situ broad band sum frequency generation (SFG) spectroscopy was applied to clarify the oxidation mechanism of adsorbed CO on Pt(1 1 1) electrode in alkaline solution comparison with that acidic solution. A single SFG peak due on-top site observed region 1950 – 2150 cm−1. While proceeded a nucleation-growth mode via Langmuir–Hinshelwood (L-H) by reacting OH main 0.1 M HClO4 solution, oxidized...

Langmuir-Hinshelwood mechanism [12]. In Section 2 we carry out the stability analysis; the algebraic concepts (and the notation) follow the book by Cox et al. [13]. As a real reaction system the wellknown carbon monoxide oxidation is investigated by the same procedure in Section 4. 2. Langmuir-Hinshelwood Mechanism Most surface reactions obey the well-known Langmuir-Hinshelwood (LH) mechanism: ...

The influence of operation temperature, inlet gas composition, current density and the anode thickness on methane steam reforming reaction over nickel yttria-stabilized zirconia anodes was experimentally studied in solid oxide fuel cells. experimental results were analyzed using data fitting Power-Law Langmuir–Hinshelwood kinetic models. Similar trends dependence partial pressures observed both...

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...

on the basis of experimental data a kinetic model for the heterogeneous interaction between alkylperoxyradicals and organic compounds in langmuir- hinshelwood approach at room temperature has been offered.the effect of oxygen on the kinetics of process in the presence, [o2]o = 1 x 1011 – 1.6 x 1012 molecules.cm-2, and absence of oxygen has been analyzed. over time the chain degenerate branching...

photoreactor using solar radiation. the effect of various parameters such as ph, initial concentration of pollutant, catalyst dose, oxidant, and time variation were studied. the determination of the best catalyst was studied amongst the four catalysts (tio2, zno, psa and ssa) .the kinetics of degradation of isooctane was also studied. the results showed that tio2 was the best catalyst with a de...