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عنوان البحث(Papers / Research Title)


Investigation of photocatalytic removal and photonic efficiency of maxilon blue dye GRL in the presence of TiO2 nanoparticles


الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)

 
ايناس محمد سلمان الربيعي

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ايناس,محمد,سلمان,الربيعي ,Investigation of photocatalytic removal and photonic efficiency of maxilon blue dye GRL in the presence of TiO2 nanoparticles , Time 04/01/2017 10:33:15 : كلية العلوم للبنات

وصف الابستركت (Abstract)


Investigation of photocatalytic removal and photonic efficiency of maxilon blue dye GRL in the presence of TiO2 nanoparticles

الوصف الكامل (Full Abstract)

TiO2 nanoparticles have been synthesized by solvent-free hydrothermal process. TiO2 nanoparticles were
annealed at 500°C for enhancing the characterization and the photocatalytic activity. The synthesized
TiO2 was characterized by x-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM),
atomic force microscopy (AFM), BET, and diffuse reflectance spectroscopy (UV-DR) techniques to study
the morphology and structural configuration. The effects of different parameters such as the initial dye
concentration, catalyst concentration, pH of the solution, light intensity, and reactive oxygen species
(ROS) on relative photonic efficiencies and photocatalytic degradation kinetics of GRL were investigated,
and the degradation of GRL follows pseudo-first order kinetics according to the Langmuir–Hinshelwood
model. The ROS studies indicate that hydroxyl radicals and holes are the predominant reactive species
within the same step, contributing up to 92.64%, hydroxyl radicals participate for about 55%, and holes
share for about 37.64% in the photocatalytic degradation of GRL.

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