Hydrothermal Synthesis, Structural and Catalytic Studies of CuBi2O4 Nanoparticles

Document Type: Original Research Paper

Authors

1 Department of chemistry, Semnan University, Semnan, Iran

2 Department of Chemistry, Semnan University, Semnan, Iran

3 School of Physics, Damghan University (DU), Damghan, Iran

Abstract

In the present work CuBi2O4 nano-spinel has been synthesized via mild hydrothermal method
at 180°C for 10 h. The synthesized nanomaterials were characterized by several techniques
to emphasis the structure and properties of produced materials. The crystal structure was
investigated by X-ray powder diffraction method and the values of the refined unit cell volume
and the structure properties were studied by using the Rietveld analysis is done using Fullprof
program. The results shew the formation of tetrahedral structure with space group P4/
ncc for this sample. Also, the morphologies of the synthesized materials were figured out
by field emission scanning electron microscope (FE-SEM). According to the FESEM images,
several nano cubic form of particles grew on micro spherical particles. As well, the catalytic
performance of obtained CuBi2O4 was studied in Biginelli reaction. The reaction conditions of
this study optimized by experimental design method. This experiment stablished high catalytic
performance of copper bismuth oxide in compare with some other metal oxide catalysts. Also,
the results shew this product is reusable homogenous catalyst.

Keywords