Hydrogen production by tuning the photonic band gap with the electronic band gap of TiO2

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Título:	Hydrogen production by tuning the photonic band gap with the electronic band gap of TiO2
Autor/a:	Waterhouse, G.I.N; Wahab, A.K.; Al-Oufi, M.; Sun-Waterhouse, D.; Llorca, J.; Idriss, H.
Abstract:	Tuning the photonic band gap (PBG) to the electronic band gap (EBG) of Au/TiO2 catalysts resulted in considerable enhancement of the photocatalytic water splitting to hydrogen under direct sunlight. Au/TiO2 (PBG-357 nm) photocatalyst exhibited superior photocatalytic performance under both UV and sunlight compared to the Au/TiO2 (PBG-585 nm) photocatalyst and both are higher than Au/TiO2 without the 3 dimensionally ordered macro-porous structure materials. The very high photocatalytic activity is attributed to suppression of a fraction of electron-hole recombination route due to the co-incidence of the PBG with the EBG of TiO2 These materials that maintain their activity with very small amount of sacrificial agents (down to 0.5 vol.% of ethanol) are poised to find direct applications because of their high activity, low cost of the process, simplicity and stability.
Abstract:	Peer Reviewed
Materia(s):	-Àrees temàtiques de la UPC::Física -Photonics -Fotònica
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Tipo de documento:	Artículo - Versión publicada Artículo
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Nadeem, M. A; Waterhouse, G.I.N; Llorca Piqué, Jordi; Muir, Joah M. R.; Idriss, Hicham

Mudiyanselage, K.; Al-Shankiti, I.; Foulis, A.; Llorca Piqué, Jordi; Idriss, H.

AlGhamdi, H.; Katsiev, K.; Wahab, A.K.; Llorca Piqué, Jordi; Idriss, Hicham

Divins, N.J.; López, E.; Llorca, J.; Vega, Didac; Rodríguez Martínez, Ángel; González de Rivera, F.; Angurell, I.; Seco, M.; Rossell, O.

García, Vanesa Mariel; Serra, Maria; Llorca, J.; Riera, Jordi (Riera Colomer)

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