Artículo
Angle dependence in slow photon photocatalysis using TiO2 inverse opals
Fecha de publicación:
03/2018
Editorial:
Elsevier Science
Revista:
Chemical Physics
ISSN:
0301-0104
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The slow photon effect was studied by means of the photocatalytic degradation of stearic acid over TiO2 inverse opals. The comparison of the degradation rates over inverse opals with those obtained over disordered structures at different irradiation angles showed that the irradiation at the blue edge of the stopband leads to the activation of the effect, evidenced by an improvement factor of 1.8 ± 0.6 in the reaction rate for irradiation at 40°. The rigorous coupled-wave analysis (RCWA) method was employed to confirm the source of the enhancement; simulated spectra showed an enhancement in the absorption of the TiO2 matrix that composes the inverse opal at a 40° irradiation angle, owing to an appropriate position of the stopband in relation to the absorption onset of TiO2.
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Articulos(CCT - MAR DEL PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - MAR DEL PLATA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - MAR DEL PLATA
Citación
Curti, Mariano; Zvitco, Gonzalo; Grela, Maria Alejandra; Mendive, Cecilia Beatriz; Angle dependence in slow photon photocatalysis using TiO2 inverse opals; Elsevier Science; Chemical Physics; 502; 3-2018; 33-38
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