부산대학교 도서관

A ternary CuO/CuS/MnO2 nanocomposite was developed via the hydrothermal method for visible light-assisted photodegradation of methylene blue. The fabricated nanocomposite was characterized using powder X-ray diffraction having a cubic, hexagonal and tetragonal geometry for the CuO, CuS, and MnO2 with a crystallite size of 3.86 nm, 13.63 nm, and 5.65 nm, respectively. Scanning electron microscopy analysis indicated spherical morphology of nanocomposite. The optical bandgap for the CuO, CuS, MnO2, and CuO/CuS/MnO2 was 2.63 eV, 3.1 eV, 2.615 eV, and 1.8 eV, respectively. The as-synthesized nanocomposite showed 98% degradation efficiency toward methylene blue in 160 min. This study suggests a potential route for the investigation of the photocatalytic performance of CuO/CuS/MnO2 nanocomposite under visible light irradiation.