Decolorization of Reactive Black 5 Using N-Doped TiO2

Authors : Aslı BERKTAŞ, Özlem Esen KARTAL

Pages : 360-370

Doi:10.35378/gujs.828761

View : 11 | Download : 5

Publication Date : 2022-06-01

Article Type : Research Paper

Abstract :Decolorization of Reactive Black 5 insert ignore into journalissuearticles values(RB5); was investigated by heterogeneous photocatalysis using N-doped TiO2. N-doped TiO2 photocatalysts were synthesized by means of a sol-gel process. X-ray diffraction performed the characterization of synthesized samples, scanning electron microscopy and X-ray photoelectron spectroscopy measurements. Photocatalytic activity of N-doped TiO2 samples was assessed by following decolorization and degradation efficiency of RB5. N-TiO2insert ignore into journalissuearticles values(3); sample yielded the highest decolorization efficiency. The apparent first-order rate constants for decolorization of RB5 with N-TiO2insert ignore into journalissuearticles values(X); samples followed the order of N-TiO2insert ignore into journalissuearticles values(3); > N-TiO2insert ignore into journalissuearticles values(2); > N-TiO2insert ignore into journalissuearticles values(4); > N-TiO2insert ignore into journalissuearticles values(1);. Improvement of decolorization efficiency of TiO2 was observed doping with nitrogen. The effect of actual sunlight on decolorization efficiency was also investigated. 96% and 49% of decolorization efficiency levels were attained within 60 minutes of reaction time with outdoor sunlight and fluorescent daylight lamps, respectively. 
Keywords : Sol gel, Nitrogen doping, Photocatalysis, Reactive Black 5, Solar light