Herein, we report the synthesis and photocatalytic performance of novel MIL53Sr and MIL53Fe@MIL53Sr composite photocatalysts. The activities of the photocatalyts were evaluated for H₂ generation and degradation of RhB dye under visible and UV–visible irradiations. It is investigated that the MIL53Fe@MIL53Sr composite photocatalyst is capable of producing 1.8 µmol·h⁻¹·g⁻¹ and 226 µmol·h⁻¹·g⁻¹ of H₂ respectively, under visible and UV–visible irradiations with the aid of co-catalyst Pt. Further, the MIL53Fe@MIL53Sr photocatalyst has the ability to degrade 67% and 75% of RhB respectively, under visible and UV–visible irradiations for 1 h. In addition, the MIL53Fe@MIL53Sr photocatalyst is highly stable during photocatalysis as confirmed by the recyclable experiments. This work will trigger the design of highly proficient visible light active MOF composites for solar fuel production and environment purification.

在这里，我们报告新型MIL53Sr和MIL53Fe @ MIL53Sr复合光催化剂的合成和光催化性能。评估了可见光和紫外可见光下H ₂生成和RhB染料降解的光催化剂活性。研究表明，MIL53Fe @ MIL53Sr复合光催化剂能够产生1.8 µmol·h ^-1 ·g ^-1和226 µmol·h ^-1 ·g ^-1的H _2。在助催化剂Pt的帮助下，分别在可见光和紫外线可见光照射下。此外，MIL53Fe @ MIL53Sr光催化剂在可见光和紫外线可见光照射1小时后，能够分别降解67％和75％的RhB。此外，MIL53Fe @ MIL53Sr光催化剂在光催化过程中具有很高的稳定性，这一点已通过可循环利用的实验得到了证实。这项工作将触发设计用于太阳能燃料生产和环境净化的高效率可见光活性MOF复合材料。