Abstract
In this work, the successful synthesis of reduced graphene oxide–TiO2 (rGO/T) photocatalysts with various concentrations of GO (5, 10, 15, and 20 wt%) has been reported. The synthesis of rGO/T photocatalysts was done by the photo-assisted reduction of GO to rGO using ultraviolet radiation followed by the hydrothermal deposition of rGO onto the TiO2. The synthesized photocatalysts were characterized by field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), and energy dispersive X-ray spectroscopy (EDXs) techniques. The photocatalysts were used for the photodegradation of Rhodamine B (RhB) dye. The photocatalytic degradation of RhB dye of 10 ppm was successfully carried out under UV light, as well as solar light irradiation over rGO/T photocatalysts. Here, the influence of GO over the photoactivity of TiO2 was explored. It was found that the synthesized rGO/T photocatalysts exhibit enhanced photocatalytic efficiency as compared to unmodified TiO2. The rate of photodegradation of RhB dye was successfully fitted by Langmuir–Hinshelwood kinetic model.
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Kumar, V., Bansal, A., Gupta, R. (2019). Synthesis of rGO/TiO2 Nanocomposite for the Efficient Photocatalytic Degradation of RhB Dye. In: Agnihotri, A., Reddy, K., Bansal, A. (eds) Sustainable Engineering. Lecture Notes in Civil Engineering, vol 30. Springer, Singapore. https://doi.org/10.1007/978-981-13-6717-5_26
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