Preparation, characterization and photocatalytic behavior of WO3-fullerene/TiO2 catalysts under visible light

Abstract

WO3-treated fullerene/TiO2 composites (WO3-fullerene/TiO2) were prepared using a sol-gel method. The composite obtained was characterized by BET surface area measurements, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, transmission electron microscopy, and UV-vis analysis. A methyl orange (MO) solution under visible light irradiation was used to determine the photocatalytic activity. Excellent photocatalytic degradation of a MO solution was observed using the WO3-fullerene, fullerene-TiO2, and WO3-fullerene/TiO2 composites under visible light. An increase in photocatalytic activity was observed, and WO3-fullerene/TiO2 has the best photocatalytic activity; it may attribute to the increase of the photo-absorption effect by the fullerene and the cooperative effect of the WO3.

Photocatalytic dye degradation and biological activities of the Fe2O3/Cu2O nanocomposite

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Removal of methylene blue from aqueous solution by electrophoretically deposited titania‐halloysite nanotubes coatings

“…Prior to UV irradiation, it was allowed that an equilibrium to be established between the coating and solution in the darkness box for 1 hour. In most photocatalysis experiments, the durations within the range of 30-120 minutes have been used to achieve the equilibrium [81][82][83] ; so the duration of 1 hour was also used to attain the equilibrium in the present work. Afterward, the coatings were irradiated with UV light for 60 minutes using an ultraviolet lamp (wavelength: 380 nm and 400 W) placed 20 cm above the samples.…”

Influence of Fe/C codoped on structural, optical, and photocatalytic properties of TiO2 powders by sol‐gel method

“…Increasing environmental pollution caused by heavy metals, pesticides, organic wastes, and dyes in rivers and seas has provided the serious motivation to starting fundamental and applied research related to the area of environmental protection . Recently, great interest has been focused on semiconductor photocatalysis using solar energy to photodegradation of water pollutants .…”