*Corresponding Author: fatemeh_hasani99@yahoo.com Abstract: The performance of advance photocatalytic degradation of 4-chlorophenol (4-CP) strongly depends on photocatalyst dosage, initial concentration and time of reaction. The aim of this study was modeling and investigating the degradation of it in water using TiO2/Fe as a nanocatalyst. Photocatalyst was optimized by varying and […]