WO3纳米片的制备表征及其可见光下降解罗丹明B的研究

通过水热合成法制备氧化钨（WO₃）纳米片，采用扫描电子显微镜（SEM）、固体紫外漫反射（UV-vis）和X 射线光电子能谱（SEM-EDX）对WO₃纳米片进行表征，并通过实验研究了可见光下WO₃对溶液中罗丹明B（RhB）染料废水的光催化降解性能。实验结果表明：WO₃投加量为0.10g时，在150W氙灯模拟可见光照射4h条件下，对质量浓度为10mg/L，体积为100mL罗丹明B染料废水的光催化降解率达到88.3%。此结果说明制备的WO₃催化剂对罗丹明B染料废水具有良好的光催化活性。

Preparation and characterization ofWO3 nanosheets and visible-light-driven photocatalytic degradation of Rhodamine B

WO₃ nanosheets have been synthesized via a hydrothermal method. The samples were characterized by SEM, UV-vis spectroscopy and SEM-EDX. The photocatalytic properties ofWO₃ nanosheets were studied using the degradation of Rhodamine B (RhB) under visible irradiation. The results show that after adding 0.1g of WO₃ nanosheets into 100mL of a solution containing 10mg/L of RhB, the degradation ratio reached 88.3% after 4hours irradiation with a 150W xenon lamp. The results show that the as-preparedWO₃ nanosheets have outstanding catalytic activity in the photocatalytic degradation process of RhB dye wastewater under visible light.