Abstract
New Bi17Ba0,45V2,1-xPxO31,2 composites have been synthesized using an easy process according to a solid-state method from vanadium oxide (V2O5), barium carbonate (BaCO3), bismuth oxide (Bi2O3) and ammonium hydrogen phosphate ((NH4)2HPO4). Their characterization was carried out by spectroscopic and microscopic analyzes methods, namely diffraction RDX, FT-IR, and SEM coupled to the EDX. They crystallize in the cubic system with Fm3m space group. The cell parameters are a = 5.5465(1), 5.5445(4), 5.5430(3), and 5.5418 (3) Å which correspond respectively to fraction x of P2O5 0, 0.15, 0.3, and 0.45. Consequently, the new composites belong to δ-variety of solid-state. Besides, the valorization of the prepared composites was performed by using them as a heterogeneous catalyst in the biscoumarinderivatives synthesis. They show a high catalytic efficiency because of the excellent yields and short reaction times for biscoumarins derivatives synthesis.
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