Anchoring Cuo Nanospindles on G-C3n4 Nanosheets for Photocatalytic Pollutant Degradation and Co2 Reduction

In this work, we have prepared a series of CuO/g-C3N4 nanocomposites with CuO nanospindles anchoring on g-C3N4 nanosheets by facile ultrasonic treatment and impregnation method. The optimum 15%CuO/g-C3N4 sample exhibited higher efficiency about 9 times and 20 times compared to pure g-C3N4 for photocatalytic degradation and CO2 reduction, respectively. Morphology of CuO and composition of CuO/g-C3N4 photocatalysts were fully characterized. The excellent performance of CuO/g-C3N4 nanocomposites mainly attributed to novel morphology and its pivotal effect on light absorption, dynamics of charge carriers as well as regulated band structure. We put forward a new combination method of CuO nanospindles with g-C3N4 nanosheets by simple and green preparation, which may pave a way for synthesis of CuO/g-C3N4 heterojunctions and its photocatalysis application both in environment and energy