Gamma-Irradiation Improves the Photocatalytic Activity of Fe/TiO2 for Photocatalytic Degradation of 2-Chlorophenol
Abstract
The Fe doped TiO2 abbreviated here as (Fe3) were prepared by sol-gel method. Upon doping FeTiO3 nano-composite was formed. The prepared sample was irradiated by different dosage of γ-irradiated (0.2, 0.4, 0.8 and 1.6 MGy). The irradiated samples which abbreviated as (0.2, 0.4, 0.8 and 1.6 MGy) and non-irradiated sample which abbreviated as (Fe3) were characterized by X-Ray Diffraction (XRD), Surface analysis, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Temperature Programmed Desorption (NH3-TPD), Raman Spectroscopy, and UV-Vis absorption. The results show that γ-irradiation not only improves the morphological and structural changes of irritated samples, but also extended its absorption edge to the visible light region. The photocatalytic activity of the samples were tested for the photocatalytic degradation of 2-chlorophenol under simulated solar light irradiation. The photocatalytic activity of the irradiated sample using 1.6 MGY was higher than the other irradiated and non-irradiated samples. The photo-intermediate product was also studied.
Keywords: Photocatalysis, TiO2, 2-chlorophenol, photocatalytic degradation, Gamma-irradiation.
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ISSN (Paper)2224-3224 ISSN (Online)2225-0956
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