Research Article

Supported Zinc Oxide Photocatalyst for Decolorization and Mineralization of Orange G Dye Wastewater under UV365 Irradiation

Figure 5

Effect of UV light intensity on OG (a) decolorization and (b) mineralization by UV/ZnO photocatalytic system. The conditions were initial dye concentration of 50 mg L−1, ZnO-coated amounts of 60 g m−2, and UV light intensity of 20 to 120 W L−1 (120 W L−1 measured as 2.1 mW cm−2).