Facile Synthesis of Graphite Film-Supported CuO Nanowires and Their High Catalytic Performance in Oxidation of Congo Red

Abstract

The design and preparation of heterogeneous Fenton-like nanocatalysts with high performance is an important task in the field of environmental catalysis. In this work, CuO nanowires supported on graphite film were synthesized using a facile process, and exhibited high catalytic activity and good stability in the oxidative degradation of Congo red with H₂O₂. At 303 K, the degradation ratio of Congo red was up to ca. 97.5% at a reaction time of 36 min, while the TOC removal reached ca. 77.0% after 80 min. The graphite film-supported CuO nanowires exhibited better stability and reusability than recently reported powdered CuO nanocatalysts. The high catalytic performance and recyclability of the graphite film-supported CuO nanowires make them a promising catalyst in the field of environmental catalysis.