الفهرس 
nanoparticlesOnly 14 pages are availabe for public view
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Abstract
Dyes Considered as one of the major water pollution sources to environment, dyes also undergo chemical and biological changes that consume dissolved oxygen in the water bodies; some dyes even possess toxicity that is hazardous to aquatic life. Traditional methods for treating the textile dye wastewaters consist of various chemical, physical, and biological processes.
To overcome this environmental problem we have synthesized Titanium dioxide nanoparticles by hydrolysis of Titanium tetrachloride in Aqueous-Alcoholic media and utilize it as a photocatalyst for the photocatalytic degradation of methylene blue as model pollutant. Methylene blue (MB) is a cationic thiazine dye with the chemical name tetra methyl thionine chloride. It has a characteristic deep blue color in the oxidized state, but the reduced form, leuko methylene blue (LMB), is colorless. The risk of the existence of this dye in waste water may be arisen from the burns effect of eye, nausea, vomiting and diarrhea.
We used TiO2 as a photocatalyst .TiO2 semiconductor nanoparticles under UV light illumination has been shown to be potentially advantageous and applicable in the treatment of wastewater pollutants for the last two decades. It has been considered an ideal photocatalyst due to its photo catalytic properties, chemical stability, impact on the environment and low cost.
We have synthesized TiΟ2 nanoparticles via a modified hydrothermal methοd inside stainless steel autοclave. Our study involves studying the morphology modification and surface charge factors.