Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2

G. I. N. Waterhouse; A. K. Wahab; M. Al-Oufi; V. Jovic; Dalaver H. Anjum; D. Sun-Waterhouse; J. Llorca; H. Idriss

doi:10.1038/srep02849

Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2

G. I. N. Waterhouse, A. K. Wahab, M. Al-Oufi, V. Jovic, Dalaver H. Anjum, D. Sun-Waterhouse, J. Llorca, H. Idriss

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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.

Original language	English (US)
Journal	Scientific Reports
Volume	3
Issue number	1
DOIs	https://doi.org/10.1038/srep02849
State	Published - Oct 10 2013

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Cite this

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title = "Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2",

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.",

author = "Waterhouse, {G. I. N.} and Wahab, {A. K.} and M. Al-Oufi and V. Jovic and Anjum, {Dalaver H.} and D. Sun-Waterhouse and J. Llorca and H. Idriss",

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year = "2013",

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day = "10",

doi = "10.1038/srep02849",

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T1 - Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2

AU - Waterhouse, G. I. N.

AU - Wahab, A. K.

AU - Al-Oufi, M.

AU - Jovic, V.

AU - Anjum, Dalaver H.

AU - Sun-Waterhouse, D.

AU - Llorca, J.

AU - Idriss, H.

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2013/10/10

Y1 - 2013/10/10

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/334595

UR - http://www.nature.com/articles/srep02849

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DO - 10.1038/srep02849

M3 - Article

C2 - 24108361

SN - 2045-2322

VL - 3

JO - Scientific Reports

JF - Scientific Reports

IS - 1

ER -

Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2

Abstract

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UN SDGs

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