Preparation of a Novel Composite Material Aluminum-Based MOF(DUT-5)/Bi2MoO6 for Degradation of Tetracycline

In this study, a novel composite DUT-5/Bi2MoO6 (DUT-5/BMO) photocatalytic material was prepared by two-step hydrothermal method for the first time. The materials were characterized by SEM, XPS, etc. Studies have shown that material with a new n–n heterojunction structure can quickly degrade tetracycline. DUT-5 was embedded between the Bi2MoO6 nanosheets, which promotes the photogenerated electrons from DUT-5 flows to Bi2MoO6, thereby reducing the recombination rate of photo-generated electron–hole pairs. The BET results show that the composite material has a larger specific surface area than the monomer Bi2MoO6. It can provide more active sites. After 60 min of visible light irradiation, the photocatalytic degradation efficiency of TC with 15% DUT-5/BMO reached 84.22%, which is 5.37 and 2.12 times higher than that of pure DUT-5 and Bi2MoO6, ·O2− and h+ were the main active substances in the photocatalysis process. In addition, DUT-5/BMO composites show excellent stability and recyclability in 5 times cyclic experiments. In conclusion, DUT-5/BMO has good stability in the environment, and can be used for environmental remediation without pollution.Graphical Abstract