Publications by authors named "Zouhaier Ksibi"
Article Synopsis
- The study focuses on the catalytic wet air oxidation (CWAO) of p-hydroxybenzoic acid (p-HBA) using Ru-based catalysts supported on various materials like TiO, CeO-TiO, ZrO-TiO, and LaO-TiO at high temperature and pressure.
- The catalysts were characterized using techniques such as N-sorption and XRD, revealing that cerium-containing catalysts (Ru/CeTi) showed significantly higher activity due to their larger specific surface area and presence of acidic sites.
- The results suggest that cerium enhances catalytic efficiency by trapping p-HBA molecules and preventing carbon deposition on the Ru surface through its redox activity.
This paper is built on the Fenton-like oxidation of p-hydroxybenzoic acid (p-HBZ) in the presence of HO and 3%Fe supported on CeO-TiO aerogels under mild conditions. These catalysts were deeply characterized by X-ray diffraction (XRD), hydrogen temperature programmed reduction (H-TPR), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM) and X-ray photoelectron spectroscopy (XPS). The effect of thermal treatment, pH (2-3, 5, 7), HO/p-HBZ molar ratio (5, 15, 20, 25) and reaction temperature (25 °C, 40 °C and 60 °C) on the catalytic properties of supported Fe catalysts are studied.
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