The resulting plot reveals distinct linear regions for each photocatalyst, with the intersection points indicating the band gap energies. The calculated band gaps, which ranged from 2.4 to 2.7 eV, suggest effective doping and enhanced photocatalytic properties. Overall, the (E*A) 2 versus energy graph serves as a valuable tool for assessing the optical performance of the synthesized photocatalysts, confirming their potential for efficient solar-driven photocatalytic applications.