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- W2896435686 abstract "This research aims to investigate photocatalytic activities of titanium dioxide (TiO 2 ) incorporated with reduced graphene oxide (rGO) nanocomposite catalysts. These TiO 2 -rGO photocatalysts were easily prepared through a direct-mixing of TiO 2 powder suspended in acidic solution under the different amounts of rGO loading (0.25, 0.50, 0.75 and 1.00 wt%). Then, the obtained TiO 2 -rGO samples were characterized by a several techniques. The results demonstrated that the crystalline phases of all samples are corresponding to pristine TiO 2 , whereas the characteristic peaks of rGO in the TiO 2 -rGO nanocomposites could be observed and also well-confirmed by Raman spectroscopy. TEM results showed that the TiO 2 nanoparticles were well-combined with rGO nanosheets. Moreover, the photocatalytic activities of all TiO 2 -rGO photocatalyst samples were evaluated by photodegrading of methylene blue (MB) dye solution under natural sunlight irradiation. The results revealed that all TiO 2 -rGO nanocatalysts exhibited much higher activity than those of the bare TiO 2 . The improved photocatalytic activity can be attributed to the presence of rGO nanosheets, leading to the decrease of electron (e - ) - hole (h + ) recombination of TiO 2 catalyst, increasing charge transfer rate of electrons and surface-adsorbed amount of MB molecules which enhances the photocatalytic activity." @default.
- W2896435686 created "2018-10-26" @default.
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- W2896435686 date "2018-10-01" @default.
- W2896435686 modified "2023-10-18" @default.
- W2896435686 title "Preparation and Photocatalytic Activities of TiO<sub>2</sub>-rGO Nanocomposite Catalysts for MB Dye Degradation over Sunlight Irradiation" @default.
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- W2896435686 doi "https://doi.org/10.4028/www.scientific.net/msf.936.47" @default.
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