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has been cited by the following article:

• TITLE: Synthesis and Characterization of TiO2 Porous Films for Heterogeneous Photocatalysis

  AUTHORS: Julio C. Morales Mejia, Lucero Angeles, Rafael Almanza

  KEYWORDS: TiO2 Porous Films; Sol-Gel Method; Photocatalysis; PEG

  JOURNAL NAME: Computational Water, Energy, and Environmental Engineering, Vol.3 No.1, January 17, 2014

  ABSTRACT: Heterogeneous photocatalysis is one of the advanced oxidation processes (AOP’s). These are very used nowadays for their implementation in tertiary water treatment with solar activation, with very good results. In this study, TiO2 porous films were synthesized by sol-gel method. Polyethylene glycol (PEG) 4000 was used as a templating reagent, which is oxidized at a lower temperature than TiO2. This allows the formation of a “skeleton” of porous TiO2 with increased surface area, resulting in higher photocatalytic activity. The film characterization was made with help of FE-SEM microscope, XRD diffractometer and scotch tape test. Finally, the oxidation experiments were performed using methylene blue as a model pollutant and they revealed an increase in the photocatalytic activity of porous films in comparison with the non-porous films.