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Effect of the phase composition and crystal size of sol-gel TiO2 nanoparticles on the NOx photodecomposition

  • R. Carrera (a1), S. Castillo (a2) and N. Castillo (a3)

Abstract

TiO2 nanoparticles with interesting physicochemical properties were synthesized by means of the sol-gel method and acid hydrolysis. The obtained nanoparticles were characterized by the X ray diffraction (XRD), Rietveld refinement, Brunauer Emmett Teller (BET) and transmission electron microscopy (TEM) techniques, and tested in the photodecomposition of NOx. The NOx decomposition degree reached by the sol-gel TiO2 nanoparticles was directly proportional to the brookite mass fraction, but inversely proportional to both the anatase mass fraction and the crystal size.

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Keywords

Effect of the phase composition and crystal size of sol-gel TiO2 nanoparticles on the NOx photodecomposition

  • R. Carrera (a1), S. Castillo (a2) and N. Castillo (a3)

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