Effect of Lewis acid centres and H2O2-complexes on the photocatalytic degradation of phenol

Araña, J.; Portillo-Carrizo, D.; Méndez, J.A. Ortega; Melián, J.A. Herrera; Doña-Rodrı́guez, J.M.; Pérez‐Peña, J.; Díaz, O. González

doi:10.1016/j.jphotochem.2012.09.002

Cited by 7 publications

(1 citation statement)

References 51 publications

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“…Finally the NH 3 interaction can also occur simultaneously at strong Lewis acid and basic centers; this leads the molecule to break and bands between 1340 and 1320 cm À1 are then observed. 50,51 Bearing this in mind, Fig. 9 shows the FT-IR spectra for the NH 3 interaction of P90, PC100 and Ti-TFAA samples.…”

Section: Resultsmentioning

confidence: 99%

Highly photoactive anatase nanoparticles obtained using trifluoroacetic acid as an electron scavenger and morphological control agent

et al. 2013

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Fluorine species adsorbed on the surface of TiO 2 anatase nanoparticles improve their photocatalytic performance by reducing the recombination rate of photogenerated electrons and holes. Trifluoroacetic acid (TFAA) has been recently proposed as a promising harmless substitute for hydrofluoric acid (HF) in preparing fluorine-modified anatase with good scavenger properties. However the photocatalytic performance of the TiO 2 nanoparticles also depends on their specific morphology, by which the number and type of crystal facets, which remain exposed, are determined. A comprehensive study is presented in this contribution which for the first time describes the role of TFAA in stabilizing the highly photoactive {001} TiO 2 facets. Furthermore, by reducing the amount of water incorporated into the reaction medium, a simple one-step synthesis method is also proposed that allows the preparation of TFAA-modified anatase nanoparticles with specific morphology and selected stabilized facets, eventually yielding a semiconductor material with excellent photocatalytic properties.

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Section: Resultsmentioning

confidence: 99%