Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2
AuthorsWaterhouse, G. I. N.
Wahab, A. K.
Anjum, Dalaver H.
KAUST DepartmentImaging and Characterization Core Lab
Permanent link to this recordhttp://hdl.handle.net/10754/334595
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AbstractTuning 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.
CitationWaterhouse GIN, Wahab AK, Al-Oufi M, Jovic V, Anjum DH, et al. (2013) Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2. Sci Rep 3. doi:10.1038/srep02849.
PubMed Central IDPMC3794377
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Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/3.0/
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