Solid state synthesis, characterization, optical properties and cooperative catalytic performance of bismuth vanadate nanocatalyst for Biginelli reactions
Abstract
Bi2V2O7 nano powders were synthesized via a solid state reaction at 500 °C for 8 h using Bi(NO3)3 and VO(acac)2 at stoichiometric 1 : 1 Bi : V molar ratio as raw materials. The synthesized material was characterized by the powder X-ray diffraction (PXRD) technique and Fourier-transform infrared (FTIR) spectroscopy. Structural analysis was performed by the FullProf program employing profile matching with constant scale factors. The results showed that the pattern had a main Bi2V2O7 structure with a space group of Fd![[3 with combining macron]](https://www.rsc.org/images/entities/char_0033_0304.gif)
m. Lattice parameters were found as a = b = c = 10.259079 Å, α = γ = β = 90°. FESEM and TEM images showed that the synthesized Bi2V2O7 particles had mono-shaped sphere morphologies. Ultraviolet-visible spectrum analysis showed that the nanostructured Bi2V2O7 powders possessed strong light absorption properties in the ultraviolet light region. Catalytic performance of the synthesized nanomaterial was also investigated in Biginelli reactions which showed excellent efficiency.
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