Fabrication of spent FCC catalyst composites by loaded V2O5 and TiO2 and their comparative photocatalytic activities

Abstract

The spent fluid catalytic cracking catalyst (FCC) has been loaded with different content of V 2 O 5 and TiO 2 through a modified-impregnation method. X-ray Diffraction (XRD), ultraviolet-visible spectrophotometry (UV-Vis), Scanning Electron Microscope (SEM), and Fourier Transform Infrared spectroscopy (FT-IR) are used to characterize the structure and morphology of these samples. Their photocatalytic activity was evaluated by degradation of methylene blue (MB) solution under 300 W Xenon lamp irradiation. The interplanar spacing of the zeolite Y (111) plane is affected by the amount of the loaded V 2 O 5 on spent FCC catalyst. The (111) plane of spent FCC catalyst loaded with V 2 O 5 and TiO 2 sample is 1.404 nm, which is higher than that of the zeolite Y (1.395 nm). The amount of adsorption of MB and the photocatalytic activity for the degradation increased with increasing the interplanar spacing of the (111) plane of sample. We fabricated of spent FCC catalyst composites by loaded V 2 O 5 and TiO 2 , which effectively solved the spent FCC catalyst disposal problem. The efficiency of the developed sample provides a potentially economical way of degrading MB.

Interaction of N‐methylformanilide with high‐performance polyimide fibre and its effect on dyeing

“…But the XRD interplanar spacing (d) of PI fibre changes as the concentration of MFA changes. In Table 1, there is a slight increase in interplanar spacing at 14.49° and 22.30° with an increase in the concentration of MFA, indicating that the spaces between the molecular chains of these two crystal planes are larger after introducing MFA into PI fibre 26 . These results show that swelling agents can improve the dyeability of PI fibres by expanding the space between molecular chains, resulting in easier penetration of dyes.…”

Recent Progress on Catalytic of Rosin Esterification Using Different Agents of Reactant

“…Spent hydroprocessing catalysts has been used in construction, ceramic and refractory applications [41]. In reality, because SFCCR is predominantly made up of silica and alumina, it possesses a steady molecular sieve arrangement that has a lot of surface area and might be used as a catalytic support [42]. The findings demonstrated that CO 2 functioned as an additional catalyst, enhancing the transfer of mass and regulating the pH within the range of 3.54 to 3.91.…”

Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal

“…However, the conduction band of V 2 O 5 rises, becoming higher than the conduction band of TiO 2 , which represents a driving force for the transport of electrons from V 2 O 5 to TiO 2 , and the transport of holes from TiO 2 to V 2 O 5 . This cascade distribution of energy bands improves charge carrier separation, thus decreasing recombination and losses during photocatalysis [13].…”