Research Article

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

Figure 9

Effect of initial pH on (a) decolorization and (b) mineralization of OG under UV/ZnO system. The conditions were initial dye concentration of 50 mg L−1, ZnO-coated amounts of 60 g m−2, light intensity of 2.1 mW cm−2, and reaction time during 120 min.