Acidity versus catalytic activity in bi-structured nanomaterials

Advanced Oxidation Technologies to Remove Endocrine Disruptors in Water Effluents Based on Zinc Supported Mesoporous Catalysts

“…Three diffraction peaks are clearly observed for the MCM-41 support. The first diffraction peak corresponds to plane (100) of the 2D-hexagonal structure of MCM-41 materials, and two weak reflections ascribed to (110) and ( 200) (Do et al 2005, Vaschetto et al 2018. The low-angle XRD patterns of the zinc loaded samples are similar to that of the pure MCM-41, indicating that the well-ordered pore structure was mainly preserved.…”

From biomass-derived furans to aromatic compounds: design of Al–Nb-SBA-15 mesoporous structures and study of their acid properties on catalytic performance

“…With the aim of inquiring about the acid properties of solids, infrared spectra (FT-IR) of adsorbed pyridine were recorded on a Thermo Scientific Nicolet iS10 spectrometer following the procedure reported by Vaschetto et al, 30,31 where self-supported wafers were degassed under vacuum (10 −3 Pa) at 400 °C for 7 h. After cooling at room temperature, the spectrum of each sample was recorded to be used as the background spectra. Afterwards, pyridine was admitted until reach the saturation of system and maintained in contact for 12 h. Then, FT-IR spectra were acquired, and the subsequent spectra were recorder after pyridine desorption by evacuation for 1 h at 50 °C and 200 °C.…”

Simulation and Sensitivity Analysis of Molybdenum Disulfide Nanoparticle Production Using Aspen Plus

“…Among the most studied nanomaterials, molybdenum disulfide has shown interesting properties regarding various applications, among which it is used as wind turbines lubricants additive [19]. As reported in our previous work, the preparation of molybdenum disulfide via the solvothermal method is quite easy and consists in mixing reactants in a Teflon-lined stainless steel autoclave filled with a solvent up to 40%-80% of its total volume [8].…”

“…is technique was used afterward for the production of innovative nanomaterials of interest for different fields, such as catalysis [2][3][4][5][6][7][8] and environment protection and energy [9][10][11], as well as medicine [12] and mechanics [13]. As known, nanomaterials are obtained using various methods following bottom-up and top-down approaches [14].…”