Bi₂MoO₆ was one of the important bismuth-based semiconductors with a narrow bandgap, and has been widely used in selective oxidation catalysts, supercapacitors, and energy-storage devices. A series of Bi₂MoO₆/ZnO composite photocatalysts with different mass ratios were synthesized by the hydrothermal method. The synthesized samples were characterized by XRD, PL, UV-Vis, SEM, TEM, XPS, and BET analysis techniques. Under visible light conditions, Methylene blue (MB) was used as the target degradation product to evaluate its photocatalytic performance. The results showed that the degradation rate constant of Bi₂MoO₆/ZnO (0.4-BZO) was about twice that of the traditional photocatalysis of ZnO. The Bi₂MoO₆/ZnO composite catalyst maintained stable performance after four consecutive runs. The high photocatalytic activity of Bi₂MoO₆/ZnO was attributed to the efficient electron transport of the heterojunction, which accelerates the separation of electron-hole pairs and reduces the probability of carrier recombination near the Bi₂MoO₆/ZnO heterojunction. Bi₂MoO₆/ZnO nanocomposites have potential applications in the field of photodegradation.

Antimony(III) trichloride (SbCl ₃ ) is an effective catalyst (1 mol%) for the condensation of anthranilic amide with various aldehydes or ketones to quinazolin-4(3 H )-one derivatives in good to excellent yields under microwave irradiation. The process is carried out within several minutes under solvent-free conditions. This general methodology has the advantages of simplicity, mild reaction conditions and high yields of products.