Synthesis and Characterization of H3PW12O40 and H3PMo12O40 Nanoparticles by a Simple Method

Jaber Javidi; Mohsen Esmaeilpour; Zahra Rahiminezhad; Fatemeh Nowroozi Dodeji

doi:10.1007/s10876-014-0745-x

Synthesis and Characterization of H₃PW₁₂O₄₀ and H₃PMo₁₂O₄₀ Nanoparticles by a Simple Method

J Clust Sci. 2014;25(6):1511-1524. doi: 10.1007/s10876-014-0745-x. Epub 2014 Jun 18.

Authors

Jaber Javidi¹, Mohsen Esmaeilpour², Zahra Rahiminezhad², Fatemeh Nowroozi Dodeji¹

Affiliations

¹ 1Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
² 2Chemistry Department, College of Science, Shiraz University, 71454 Shiraz, Iran.

Abstract

In this study H₃PW₁₂O₄₀·9H₂O and H₃PMo₁₂O₄₀·6H₂O (HPA) particles were changed into nano forms by heat-treatment in an autoclave as a simple, repaid, inexpensive and one step method. The particle size of these nanoparticles was around 25 nm. The as-synthesized nanostructures were characterized by dynamic light scattering, X-ray powder diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy and inductively coupled plasma analyzer. Thermal stability of nanoparticles was surveyed by thermal gravimeter analyse. Acidity of prepared nanoparticles was investigated by pyridine adsorption method. Results showed rising acidity by declining particle size of HPA.

Keywords: Acidity; Heteropolyacid; Hydrothermal; Nanomaterials.