Immobilization of polyphosphotungstate in the network structure of ZrO2 nanoparticles and study their Sonocatalytic and photocatalytic behavior in the different conditions

Polyoxometalates (POM) supported on zirconia, H3PW12O40/ZrO2, were prepared by incorporating polyphosphotungstate into a zirconia matrix via sol–gel technique that involving the hydrolysis of zirconium (IV) n-butoxide, Zr (n-OBu) 4, as the ZrO2 source. This insoluble and readily separable catalyst was characterized by using XRD, FT-IR, SEM, and UV diffuse reflectance spectroscopy(UV- DRS), indicating that the polyphosphotungstate was chemically attached to the zirconia supports, and primary keggin structure remained intact.

Immobilization of polyphosphotungstate in the network structure of ZrO2 nanoparticles and study their Sonocatalytic and photocatalytic behavior in the different conditions Keywords:

Polyphosphotungstate , Sonocatalytic , Photocatalytic , Degradation , Nanocomposite