H_3PW_12O_40 and Nano-sized Titania Supported on Urea Formaldehyde Resin for Photo catalytic Decolorization of Dye Pollutants in Aqueous Solution

In this work, h_3pw_12o_40 (ppt) and nano-sized titania supported on urea formaldehyde (uf) resin was prepared via an impregnation method. the prepared sample was characterized by x-ray diffraction (xrd), uv-vis spectrophotometer, fourier transform infrared spectroscopy (ft-ir), scanning electron microscopy (sem) and energy-dispersive x-ray spectroscopy (edx). the photo catalytic activity of the ppt/tio_2/uf sample was evaluated by the decolorization of bromothymol blue (bb), direct yellow12 (dy) and texas red (tr) dye solutions under uv-vis and visible light irradiation. the optical property of the ppt/tio_2/uf sample was evaluated by uv-vis spectrum. the effect of photocatalyst dosage and dye concentration on photo catalytic decolorization of dyes was investigated. photo catalytic efficiency of the ppt/tio_2/uf sample was compared with tio_2/uf sample. moreover, the reusability of the sample was examined.