PVDF/rGO/CuO nanocomposites: A robust platform for solar-driven tetracycline photodegradation

Abstract

Tetracycline, a broad-spectrum antibiotic, poses a significant threat to environmental health due to its widespread usage and persistence in water bodies. Traditional treatment methods often prove inadequate, necessitating the development of efficient and sustainable strategies for tetracycline degradation. This study aimed to synthesize and investigate the photocatalytic performance of PVDF/rGO/CuO nanocomposites for tetracycline degradation under ambient solar irradiation. The integration of reduced graphene oxide (rGO) into the nanocomposite addressed the inherent drawbacks of CuO, such as poor dispersibility and limited light absorption. This novel approach aimed to enhance the photocatalytic activity and efficacy of the system. The study successfully synthesized PVDF/rGO/CuO nanocomposites with improved dispersibility and enhanced light absorption due to rGO's incorporation. It is worthy to note that, the 5% CuO/rGO nanocomposite exhibited an exceptional photodegradation rate of 94.8% for tetracycline under solar irradiation. The photodegradation efficiency was concentration-dependent and significantly higher under acidic conditions. These findings demonstrate the potential of PVDF/rGO/CuO nanocomposites as promising photocatalysts for environmental remediation. Their solar-driven tetracycline degradation capability highlights their potential application in addressing water pollution concerns associated with antibiotic residues.