TiO2 Nanoparticles Sensitized by Safranine O Dye using UV-A Light System

2nd International Scientific Conference (Pure Sciences, Brilliant Creativity and Renewed Building)

Jasim, Khlowd Mohammed^1 ; Ahmed, Luma M.^1

Department of Chemistry, College of Science, University of Kerbala, Kerbala, Iraq^1

关键词: Fenton reactions;    Low-activation energy;    photo-decolorization;    Photocatalytic decolorization;    Pseudo-first-order;    Reaction temperature;    Safranine O;    TiO2 nano-powder;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/571/1/012064/pdf
DOI  :  10.1088/1757-899X/571/1/012064

来源: IOP

【 摘 要 】

This study examined the photocatalytic decolorization of safranine O dye by using TiO2 nanopowder as a photocatalyst, under illumination with using artificial UV-A-light. The behavior of this reaction was pseudo first order and the maximum of removal was 88.176% in 100 min. at 30°C. The increased of reaction temperature enhances the photoreaction, with positive ΔH that equal to 20.552 kJ mol-1 and given low activation energy reach to 22.609 kJ mol-1. The Fenton reaction was applied in aqueous solution of this dye with the using TiO2 nanopowder and given maximum photo decolorization efficiency.