photocatalytic degradation of dye using uv/zro2

in this work, the zirconium dioxide nanocatalyst was primed by sol-gel method for degradation of acid red 40 (ar 40) solution in water. the effectiveness of the treatment method applied for the degradation of ar 40 based on an advanced photocatalytic oxidation process was investigated. the three various key parameters were optimized by using response surface modeling namely: ph, zro₂ concentration and the initial ar 40 concentrations. the optimized values were obtained at the ph (11), zro₂ concentration (0.04 g/l), and the initial ar 40 concentration (18.11 mg/l).