Here, SnO2, BiVO4, and CuO nanoparticles (NPs) were hydrothermally synthesized and mixed in an agate mortar mechanically. The coupled ternary SnO2-BiVO4-CuO (SBC) catalyst and the individual NPs were then briefly characterized by powder X-ray diffraction (XRD), scanning electron microscope (SEM), and diffuse reflectance spectroscopy (DRS). Average crystallite size of 25 nm was obtained from the […]
A novel organic-inorganic hybrid magnetic nanomaterial, namely nano-[Fe3O4@SiO2@R-NMe2][FeCl4] (nano-[FSRN][FeCl4]) was prepared, and characterized by EDX, elemental mapping, FE-SEM, FT-IR, XRD, VSM, TG and DTG analyses. Then, it was applied as a highly efficient and magnetically recyclable catalyst for the solvent-free synthesis of bis-coumarins from 4-hydroxycoumarin (2 eq.) and arylaldehydes (1 eq.). NMe2 is a basic […]