Journal of Industrial and Engineering Chemistry, Vol.33, 178-184, January, 2016
Superior adsorption and photodegradation of eriochrome black-T dye by Fe3+ and Pt4+ impregnated TiO2 nanostructures of different shapes
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This article highlights comparative adsorption behavior and photocatalytic activity of TiO2
nanostructures (P25, nanorods and nanotubes) for degradation of eriochrome black-T dye (EBT)
depending on their structural morphology and metal ions (Fe3+ and Pt4+) deposition. Enhancement in adsorption capacity (qmax) was observed due to impartment of extra positive charges by Fe3+ and Pt4+ impregnation and follow the order, Pt4+ -P25-TiO2 (400 mg/mg) > Fe3+ -P25-TiO2 (344 mg/mg) > P25-TiO2 (248 mg/mg) > nanotubes (123 mg/mg) > nanorods (69 mg/mg). The Fe3+ and Pt4+ loaded TiO2 improved dye adsorption and degradation rate of EBT undergoing complete minerization to CO2 under UV light irradiation.
Keywords:Metal-TiO2 nanostructures;Fe3+ and Pt4+ loaded TiO2;Dye adsorption isotherm;Ionic surface-dye interaction;Eriochrome black-T degradation
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