制备了核壳异质结催化剂SmVO₄@g-C₃N₄和负载型异质结催化剂SmVO₄/g-C₃N₄，利用XRD、SEM-EDX、TEM、XPS及N₂吸附等手段对其进行了表征，并考察其在可见光下对罗丹明B溶液的光催化活性。结果表明，核壳结构SmVO₄@g-C₃N₄光催化活性明显高于SmVO₄和g-C₃N₄。但在几种催化剂中，负载量为8.0%的SmVO₄/g-C₃N₄样品的光催化活性最好。

Core-shell heterojunction catalyst SmVO₄@g-C₃N₄ and a loaded heterojunction catalyst SmVO₄/g-C₃N₄ are prepared.The physical and chemical properties of as-obtained samples are characterized by using XRD,SEM-EDX,TEM,XPS and N₂-sorption.And the samples' performance in photocatalytic degradation of rhodamine B under visible light irradiation is also investigated.The result shows that the photocatalytic performance of SmVO₄@g-C₃N₄ is apparently higher than that of SmVO₄ and g-C₃N₄.SmVO₄/g-C₃N₄ catalyst with 8.0 wt% loadings has the best photocatalytic activity.

付孝锦(1976-),男,博士,副教授,研究方向为光催化,fu-xj2007@163.com。