Resumen

CARRERA-LOPEZ, R.  y  CASTILLO-CERVANTES, S.. Superf. vacío [online]. 2012, vol.25, n.2, pp.82-87. ISSN 1665-3521.

TiO₂ nanoparticles with attractive physicochemical properties have synthesized by means of the sol-gel method and acid hydrolysis. The obtained nanoparticles have characterized by the XRD-Rietveld refinement, BET and TEM techniques, and tested in the photodecomposition of acetaldehyde. The degree of decomposition of acetaldehyde by the sol-gel TiO₂ nanoparticles was directly proportional to the brookite mass fraction but inversely proportional to the anatase mass fraction and crystallite size.

Palabras llave : Ti; Sol-gel; Photodecomposition; acetaldehyde; anatase; brookite.