利用水热反应法制备了m-LaVO₄中空微球，并通过XRD、SEM、UV-Vis、氮气吸附脱附实验对产物的物相结构、形貌特征、光学性能以及比表面积进行了表征，并通过对抗生素TC的降解来表征制备的中空微球光催化剂的光催化性能。结果表明，产物为纯净的单斜独居石相的钒酸镧中空微球，直径为2~10 μm，中空区域直径为1 μm，在光照7 h的条件下，光催化剂对抗生素的降解接近80%。

m-LaVO₄ hollow microspheres are prepared by hydrothermal reaction method and their phase structure,morphology,optical properties and specific surface area are characterized by XRD,SEM,Uv-Vis and nitrogen adsorption desorption experiments.The photocatalytic performance of the prepared hollow microsphere photocatalyst is evaluated by degradation of antibiotic TC.Characterization results show that the prepared catalyst is yttrium vanadate hollow microspheres exhibiting a pure monoclinic monazite phase with a diameter of 2-10 μm and a hollow region diameter of 1 μm.Evaluation result indicates that the degradation rate of TC over the prepared catalyst is close to 80% after 7 hours of illumination.

王晓丽(1993-),女,硕士生,研究方向为光催化剂,857006010@qq.com