Abstract
In this research, photocatalyticdecolorization of Direct yellow 86(2-Solamine) in water in alkaline and neutral media under external UV light irradiation by zinc oxide nano-sized catalysts on granule glass as a semiconductor photocatalyst is described. The photodecomposition rates have been found to be different by applying the different atmospheres through degradation process. The effect of four type atmospheres including air, nitrogen, oxygen and argon was investigated. Kinetics of decolorizaton was investigated and pseudo-first order kinetic was found under oxygen and argon atmosphere. Finally it was found that photodecomposition using ZnOnano-sized layered on glass is a new alternative route for efficient wastewater treatment.
Highlights
Introduction zinc oxide thin filmThe binary zinc oxide /Glass filmsTextile industries produce large amount of colored dye have been employed in photocatalyticdecolorization of effluents which are toxic that induce a lot of damage to direct yellow 86 in aqueous solutions
Glass beads were pretreated with dilute is an effective method to remove low concentrations of hydrofluoric acid (5% v/v) for 24 h and washed thoroughly organic contaminants
The surface of the films was observed by scanning electron microscopy (SEM) with a Philips XL30 (Fig.1)
Summary
Introduction zinc oxide thin filmThe binary zinc oxide /Glass filmsTextile industries produce large amount of colored dye have been employed in photocatalyticdecolorization of effluents which are toxic that induce a lot of damage to direct yellow 86 in aqueous solutions. The coating substrate (granule glass) was preby some other methods. Alcohols, carboxylic acids, alkenes, aromatics, halo Film deposition: Nanosized zinc oxide thin film was aromatics, polymers, surfactants, herbicides, pesticides supported on glass beads (diameter 3mm) by the method and dyes.
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