Author/Authors :
pakmehr، mohammad نويسنده Department of Material Engineering,Islamic Azad University, Najafabad Branch,Najafabad,Iran , , Nourmohammadi، Abolghasem نويسنده Faculty of Modern Science and Technologies,Department of Nanotechnology,Isfahan University,Isfahan,Iran , , ghashang، majid نويسنده Faculty of sciences,Department of Chemistry,Islamic Azad University, Najafabad Branch,Najafabad,Iran , , Saffar Teluri، ali نويسنده Faculty of sciences,Department of Chemistry,Islamic Azad University, Najafabad Branch,Najafabad,Iran ,
Abstract :
In this study, a chemical method including TiCl4, Al(NO3)3, ethanol amine, ethyl acetoacetate and aqueous ammonia were used for the fabrication of TiO2-Al2O3 nano-composite. The as prepared nano-composite was characterized applying the XRD, FE-SEM and TEM techniques. The photocatalytic behavior of TiO2-Al2O3 nano-composite was evaluated in the photo-catalytic degradation of methyl orange under UV irradiation technique. The effect of various parameters including catalyst dosage, dyes concentration, pH and temperature on the degradation of methyl orange was investigated. The degradation rate was efficiently increased as the concentration of catalyst was decreased. The optimum dosage of methyl orange was found to be 10 mgL-1. In addition, we found that pH can significantly enhance the photocatalytic degradation of methyl orange dye.
Keywords :
Al2O3 , Photocatalytic degradation , Methyl orange , TIO2 , TiO2-Al2O3 nano-composite
