One of the most common herbicides in the world, Atrazine, was used as a model pollutant in this study. The photocatalytic activities of the nanocomposite of TiO2/Ag, with nanopaticles of TiO2 and Ag, were investigated by photodegradation of atrazine under the natural sun. It was found that the efficiency of solar-photocatalytic activity was increased significantly by using the nanocomposites of TiO2/Ag, compared to the use of TiO2 alone. The mechanism of the TiO2/Ag composite for enhancement of photocatalytic activity was elucidated in this work.

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