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We improve the photocatalytic effect of Ag 2 S under visible light by using fullerene modified with Ag 2 S nanoparticles. Surface areas and pore volumes of the Ag 2 S-fullerene samples showed catastrophic decreases due to the deposition of Ag 2 S. The generation of reactive oxygen species was detected through the oxidation reaction from 1,5-diphenyl carbazide (DPCI) to 1,5-diphenyl carbazone (DPCO). It is found that the photocurrent density and the photocatalytic effect increase in the case with the modified fullerene. In comparison with the separate effects of Ag 2 S and fullerene nanoparticles, the photocatalytic effect of the fullerene modified with Ag 2 S composites is increased significantly due to the synergetic effect between the fullerene and the Ag 2 S nanoparticles.

A one-step alkaline hydrothermal strategy was developed to fabricate a strongly coupled Co3O4 NSs–rGO hybrid with large specific capacitance and high electrochemical utilization at high rates for advanced supercapacitors.

Platinum treated fullerene/TiO 2 composites (Pt-fullerene/TiO 2 ) were prepared using a sol-gel method. The composite obtained was characterized by FT-IR, BET surface area measurements, X-ray diffraction, energy dispersive X-ray analysis, transmission electron microscopy (TEM) 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 Pt-TiO 2 , fullerene-TiO 2 and Pt-fullerene/TiO 2 composites under visible light. An increase in photocatalytic activity was observed and Pt-fullerene/TiO 2 has the best photocatalytic activity, which may be attributable to increase of the photo-absorption effect by the fullerene and the cooperative effect of the Pt.

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Here we report a new composite material consisting of TiO 2 nanoparticles grown in the presence of a layered PtSe 2 /graphene hybrid as a high-performance photocatalytic material. The heterogeneous PtSe 2 -graphene/TiO 2 nanocomposites were successfully synthesized through a facile and fast microwaveassisted method. The prepared composites were characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM) with energy dispersive X-ray (EDX) spectroscopy, transmission electron microscopy (TEM), Raman spectroscopic analysis, X-ray photoelectron spectroscopy (XPS), and UV-vis absorbance spectra and UV-vis diffuse reflectance spectra (DRS) analyses were obtained. The catalytic behavior was investigated through the decomposition of rhodamine B (Rh. B) as a standard dye and Texbrite MST-L as an industrial dye. This extraordinary photocatalytic activity arises from the positive synergetic effect between the PtSe 2 and graphene components in this heterogeneous photocatalyst. In this study the graphene behaves as an electron transfer agent, collector, contributor and a source of active adsorption sites. The optical properties were also observed to be affected by the different weight% of graphene in the composites by observing their respective band gaps from DRS spectra.

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