Studi dan Aplikasi Elektroda FeTiO3-TiO2/Ti untuk Degradasi Reactive Blue 160 dengan Metode Fotoelektrokatalisis:

Abstract

The manufacture of titanium dioxide (TiO₂) electrodes is made by anodizing method and coated with ilmenite (FeTiO₃) through a dip-coating technique. The ilmenite (FeTiO₃) coated TiO₂/Ti plate electrode was developed for the degradation of the reactive blue 160 dye under photoelectrocatalytic UV and Visible light irradiation. The performance of FeTiO₃-TiO₂ / Ti composites degrades reactive blue 160 under UV irradiation and is visible photoelectrocatalytically compared to TiO₂. The results of XRD characterization of TiO₂ crystals in the form of anatase at 2θ, namely 35.1 ° (110), and the substitution of Fe dopant on TiO₂ in the form of anatase and rutile crystals. FTIR data indicated the presence of Fe-O bonds at wave numbers <700 nm. SEM-EDX results showed a thin layer of FeTiO₃ was formed, indicating that the dip-coating method was effective in the coating process. The performance of the FeTiO₃-TiO₂ / Ti electrode has the highest activity against the oxidation process under visible light than the TiO₂/Ti electrode. The results of degradation of reactive blue 160 dye with a concentration of 0.5 ppm by photoelectrocatalytic showed that the TiO₂ / Ti and FeTiO₃-TiO₂/Ti electrodes were active in visible irradiation with degradation rate constants of 48% and 69%.

Keywords: Electrodes, ilmenite, TiO₂ / Ti, degradation, reactive blue 160, photoelectrocatalysis