g-C_3N_4/LiNbWO_6光催化材料的构建及其催化性能的研究

Study on the construction and performance of g-C_3N_4/LiNbWO_6 photocatalytic material

采用一步焙烧的方法制备了新型纳米管复合材料g-C_3N_4/LiNbWO_6。采用粉末X射线衍射(XRD)、紫外-可见漫反射光谱(UV-vis-DRS)对制备的g-C_3N_4/LiNbWO_6及其前驱体进行了表征。以罗丹明B(RhB)为降解物,对纳米复合材料在可见光照射下的光催化氧化性能进行了评价。结果表明,与LiNbWO_6相比,纳米复合材料的吸收波长明显向可见光区移动,在可见光下具有更高的光降解活性。

A new composite photocatalytic material g-C3N4/LiNbWO6 was prepared through one-step calcining program.g-C3N4/LiNbWO6 and its precursors were characterized by powder X-ray diffraction(XRD)and UV-visible diffuse reflection spectroscopy(UV-vis-DRS).The photocatalytic oxidation properties of nanocomposites were evaluated by using RhB as the degradation product.The experimental results show that the absorption wavelength of the as-prepared composite material shifts significantly towards visible light region.The nanocomposite has higher photodegradation activity in visible light.