ABSTRACT

The photocatalytic activity of Sr, N-codoped TiO2 photocatalysts was investigated by the degradation of Reactive Black 5 (RB 5) under natural sunlight irradiation. A series of Sr, Ncodoped TiO2 photocatalysts with different dopant concentrations (0.001 M%, 0.003 M %, 0.005 M %, 0.007 M %, and 0.009 M %) were synthesized by sol-gel route. Initially, photocatalytic activity of the pure TiO2 was hindered due to its poor surface properties and low utilization of visible light. To minimize these bottle neck drawbacks of TiO2 photocatalyst, the doping treatment of Strontium and Nitrogen. The photocatalytic activity of Sr, N-codoped TiO2 photocatalysts was remarkably higher than that of the as-prepared sample. The highlighted photocatalytic properties of Sr, N-codoped TiO2 were confirmed by X-ray powder diffraction (XRD), Scanning electron microscopy (SEM), UV-visible diffused reflectance spectroscopy (UV-DRS) and Photoluminescence spectra (PL). 0.007% Sr, N-codoped TiO2 has photostability and long durability. Further, green oxidant (H2O2) combined photocatalytic activity process carried out with highly reactive 0.007% Sr, N-codoped TiO2 photocatalyst. Keywords: Sr, N-Codoped TiO2, sol-gel route, Photocatalytic Degradation, Reactive Orange 30 and Natural Sun Light, green oxidant, semiconductor
Publication date: 01/08/2020

https://ijbpas.com/pdf/2020/August/MS_IJBPAS_2020_5121.pdf

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https://doi.org/10.31032/IJBPAS/2020/9.8.5121