Nanostructured TiO2 photocatalyst and pump-probe spectroscopic study

Wen can Zhou, Zheng cao Li, Zheng jun Zhang, Ken Onda, Sho Ogihara, Yoichi Okimoto, Shin ya Koshihara

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Titanium dioxide (TiO2), with its large band gap, has attracted much attention due to its excellent photocatalytic activity. TiO2 ball-shaped nano-particles were deposited on silicon substrates by a thermal oxidation approach. With an increase in the annealing temperature the surface morphology and the structure of TiO2 remained stable, exhibiting good heat stability; meanwhile, the hydrogen production rate also increased. The femtosecond pump-probe spectroscopic study showed that the lifetime of carriers of the samples as- deposited and post-annealed at different temperatures were longer than 20 ps.

Original languageEnglish
Pages (from-to)403-408
Number of pages6
JournalFrontiers of Materials Science in China
Volume3
Issue number4
DOIs
Publication statusPublished - Nov 1 2009
Externally publishedYes

Fingerprint

Photocatalysts
Pumps
Silicon
Hydrogen production
Titanium dioxide
Surface morphology
Energy gap
Annealing
Oxidation
Temperature
Substrates
Hot Temperature
titanium dioxide

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Zhou, W. C., Li, Z. C., Zhang, Z. J., Onda, K., Ogihara, S., Okimoto, Y., & Koshihara, S. Y. (2009). Nanostructured TiO2 photocatalyst and pump-probe spectroscopic study. Frontiers of Materials Science in China, 3(4), 403-408. https://doi.org/10.1007/s11706-009-0055-7

Nanostructured TiO2 photocatalyst and pump-probe spectroscopic study. / Zhou, Wen can; Li, Zheng cao; Zhang, Zheng jun; Onda, Ken; Ogihara, Sho; Okimoto, Yoichi; Koshihara, Shin ya.

In: Frontiers of Materials Science in China, Vol. 3, No. 4, 01.11.2009, p. 403-408.

Research output: Contribution to journalArticle

Zhou, WC, Li, ZC, Zhang, ZJ, Onda, K, Ogihara, S, Okimoto, Y & Koshihara, SY 2009, 'Nanostructured TiO2 photocatalyst and pump-probe spectroscopic study', Frontiers of Materials Science in China, vol. 3, no. 4, pp. 403-408. https://doi.org/10.1007/s11706-009-0055-7
Zhou, Wen can ; Li, Zheng cao ; Zhang, Zheng jun ; Onda, Ken ; Ogihara, Sho ; Okimoto, Yoichi ; Koshihara, Shin ya. / Nanostructured TiO2 photocatalyst and pump-probe spectroscopic study. In: Frontiers of Materials Science in China. 2009 ; Vol. 3, No. 4. pp. 403-408.
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