通过水热法一步合成了具有增强可见光吸收和电荷分离的碳量子点/BiPO4纳米复合光催化材料.通过降解罗丹明 B 染料表征了碳量子点/BiPO4纳米复合材料的光催化性能.结果表明:在模拟太阳光或可见光的照射下,碳量子点/BiPO4复合材料的光催化性能均优于单纯的BiPO4.碳量子点/BiPO4复合材料光催化性能的提升可归因于碳量子点对可见光的吸收增加了太阳光的利用率,以及碳量子点的电子转移和储存性质提高了材料的电荷分离效率.%In this study, a CQDs/BiPO4nanocomposite with enhanced visible-light absorption and charge separation was fabricated via a one-step hydrothermal reaction.The photocatalytic activity of the CQDs/BiPO4nanocomposite was evaluated by degradation of rhodamine B (RhB). The result showed that the CQDs/BiPO4composite exhibited superior photocatalytic performance to pure BiPO4under simulated solar light, as well as under visible light irradia-tion. Its enhanced photocatalytic performance could be ascribed to the excellent light harvesting properties, which increased utilization rate of solar energy, electron transfer efficiency and reservoir ability of the nanocompsites, fa-cilitating the charge separation efficiency of the composite.
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