Azad K and Gajanan P
In this study, the Co:La:TiO2 nanocomposite was prepared by the wet chemical method. Synthesized TiO2 and Co:La:TiO2 were characterized by X-Ray Diffractometer, SEM, TEM, UV- vis, FT-IR, Band gap energy and BET. The TiO2 and Co:La:TiO2 were used as photocatalyst for the degradation of Methyl Blue. The XRD pattern confirmed the presence of anatase and rutile phase in the catalyst. The particle size was estimated by the Scherrer’s and found 68 and 32 nm for TiO2 and Co:La:TiO2 respectively. The particle morphology of the photocatalysts was found in nanodiamension. The surface area of the photocatalysts was found 37.52 and 106.68 m2/g for TiO2 and Co:La:TiO2 respectively. The band gap energy of TiO2 and Co:La:TiO2 were 3.2 and 3.0 eV. The photodegradation of Methyl Orange has been found 18% and 88% at 5 pH for TiO2 and Co:La:TiO2 respectively. The photodegradation of Methyl Orange has been found 19% and 98.9% at 25 ppm concentration of dye. The photodegradation of Methyl Orange has been found 25% and 96% at 800 mg/L amount of photocatalyst and 180 min illumination of visible light. The photodegradation was following the first order kinetics.
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