Influence of ethylene glycol on the nanostructured pure and V-doped SnO2 nanoparticles via sol-gel process and application in photocatalysts

摘要

Nanocrystalline ethylene glycol mediated pure and vanadium doped tin oxide (VTO) powders of about 5-20nm in size have been prepared by simple sol-gel method. The molecular structural properties of the prepared pure SnO_2 nanopowders annealed at different temperatures (80-600○C) have been characterized by Fourier transform infrared spectroscopy (FTIR). PL emission spectra show that the introduction of V~(2+) into the SnO_2 host, the defects still play a dominant role with respect to the luminescence processes. The prepared VTO nanoparticles exhibit photocatalytic activity in the degradation of methyl orange, indicating that the SnO_2 nanostructure is promising as a semiconductor photocatalyst.