Cerium fluoride (CeF₃) semiconductor with upconversion property was constructed on graphite carbonitride (g-C₃N₄) nanosheets by microwave hydrothermal method. The X-ray diffraction, transmission election microscopy, Fourier transform infrared, and X-ray photoelectron spectra techniques were used to characterize the CeF₃/g-C₃N₄ nanocomposite. The study shows that CeF₃ has upconversion property and can convert visible light (Vis) and near-infrared light (NIR) into ultraviolet light (UV). Moreover, CeF₃ and g-C₃N₄ can form well-defined heterojunction and promote the effective separation of photogenerated electrons and holes. The synergistic effect of the CeF₃/g-C₃N₄ nanocomposite was evaluated by photocatalytic degradation of dibenzothiophene (DBT). The optimum photocatalyst of CeF₃/g-C₃N₄ (40 wt%) composites exhibit the highest photocatalytic desulfurization rate of the model oil under visible light radiation.

采用微波水热法在碳氮化石墨（gC ₃ N ₄）纳米片上构建了具有上转换特性的氟化铈（CeF ₃）半导体。X射线衍射、透射电子显微镜、傅里叶变换红外和X射线光电子能谱技术被用来表征CeF ₃ /gC ₃ N ₄纳米复合材料。研究表明，CeF ₃具有上转换特性，可以将可见光（Vis）和近红外光（NIR）转换为紫外光（UV）。此外，CeF ₃和 gC ₃ N ₄可以形成明确的异质结并促进光生电子和空穴的有效分离。CeF ₃ /gC ₃ N ₄纳米复合材料的协同效应通过二苯并噻吩（DBT）的光催化降解来评估。CeF ₃ /gC ₃ N ₄ (40 wt%)复合材料的最佳光催化剂在可见光辐射下表现出最高的模型油光催化脱硫率。