Ultrasonic Synthesis and Characterization of Zinc Pyrovanadate Nanostructures

The unique low temperature synthesis of zinc pyrovanadate from oxides was proposed. Zn3V2O7(OH) (2) center dot 2(H2O) was synthesized by ultrasonic (US) method using ZnO and V2O5 as raw materials. It was established using SEM and TEM methods that Zn3V2O7(OH) 2 center dot 2(H2O) has the structure of nanosheets. The DTA method and XRD analysis showed the formation of the Zn3V2O8 phase after the removal of crystallization water from Zn3V2O7(OH) (2)center dot 2(H2O). Ultrasonic treatment of oxides as initial reagents allows obtaining Zn3V2O8 with the specific surface area of 14 m(2)/g. For comparison, Zn3V2O8 was synthesized by solid-state (SS) synthesis from oxides. The properties of zinc pyrovanadate obtained by US synthesis and conventional SS synthesis were compared. The advantages of US method over conventional SS synthesis were noted.