Photocatalytic Degradation of DIPA Using Bimetallic Cu-Ni/TiO₂ Photocatalyst under Visible Light Irradiation

Figure 5

Photocatalytic degradation of DIPA under visible light using bimetallic Cu-Ni/TiO₂ photocatalysts (calcination temperatures = 180, 200, and 300°C; DIPA concentration = 100 ppm; reaction temperature = room temperature 23 ± 1; reaction volume = 100 mL; irradiation duration = 60 min; light source = 500 W halogen lamp; photocatalyst loading = 1 g·L⁻¹).