Abstract The photodegradation of Congo red (CR) dye was studied with pure Cu2O, Cu2O/TiO2 (CT), and Cu2O/ZnO (CZ) heterojunctions photocatalysts. A facile one-pot solvothermal method with absolute ethanol as a… Click to show full abstract
Abstract The photodegradation of Congo red (CR) dye was studied with pure Cu2O, Cu2O/TiO2 (CT), and Cu2O/ZnO (CZ) heterojunctions photocatalysts. A facile one-pot solvothermal method with absolute ethanol as a solvent and reducing agent was used to prepare the photocatalysts. CT and CZ showed excellent adsorption properties and ultrafast photocatalytic activities on CR, especially CZ. The optimized CZ (1.5–1.5) resulted in an incredible photocatalytic activity by completely degrading 30 ppm CR within 10 min. The configuration of p-n heterojunction between Cu2O, TiO2, and ZnO successfully promoted the photogenerated electron-hole pairs separation for enhanced CR dye degradation in aqueous solution.
Journal Title: Materials Science in Semiconductor Processing
Year Published: 2021
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