Sodium 30-tungstopentaphosphate as a green and novel nanocatalyst: synthesis and study of application

Encouraged by our recent success in work with POMs as green catalysts, we have developed our research in field of nanotechnology. Sodium 30-tungstopentaphosphate, so called Preyssler anion, nanoparticles were synthesized and the morphology and size of these nanoparticles were characterized using, transmission electron microscopy (TEM), scanning electron microscopy(SEM), X-ray diffraction(XRD) and IR spectroscopy. The photodegradation of methyl orange, synthesis of 4(3H)-quinazolinones, synthesis of isobenzofuran-1(3H)-ones , rapid and efficient synthesis of 4(3H)-quinazolinones under ultrasonic irradiation, synthesis of bis(indolyl)alkanes under ultrasonic irradiation and synthesis of 1,3-diaryl-5-spirohexahydropyrimidines were selected to estimate the catalytic activity of the synthesized nanoparticles and found to be excellent. Key-Words: Nanocatalyst, Nanoparticle, Silica-supported, Heteropolyacid, Polyoxometalate, Preyssler.