Resumo

CARRERA-LOPEZ, R.  e  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.

Palavras-chave : Ti; Sol-gel; Photodecomposition; acetaldehyde; anatase; brookite.

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