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

doi:10.1007/s11706-009-0055-7

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 journal › Article › peer-review

5 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 language	English
Pages (from-to)	403-408
Number of pages	6
Journal	Frontiers of Materials Science in China
Volume	3
Issue number	4
DOIs	https://doi.org/10.1007/s11706-009-0055-7
Publication status	Published - Nov 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Materials Science(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/s11706-009-0055-7

Cite this

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title = "Nanostructured TiO2 photocatalyst and pump-probe spectroscopic study",

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.",

author = "Zhou, {Wen can} and Li, {Zheng cao} and Zhang, {Zheng jun} and Ken Onda and Sho Ogihara and Yoichi Okimoto and Koshihara, {Shin ya}",

note = "Funding Information: Acknowledgements The authors are grateful to the financial support from the National Natural Science Foundation of China (Grant Nos. 10675070 and 50701026), the National Basic Research Program of China (973 Program, 2007CB936601), and the Project funded by Tsinghua Basic Research Foundation.",

year = "2009",

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doi = "10.1007/s11706-009-0055-7",

language = "English",

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T1 - Nanostructured TiO2 photocatalyst and pump-probe spectroscopic study

AU - Zhou, Wen can

AU - Li, Zheng cao

AU - Zhang, Zheng jun

AU - Onda, Ken

AU - Ogihara, Sho

AU - Okimoto, Yoichi

AU - Koshihara, Shin ya

N1 - Funding Information: Acknowledgements The authors are grateful to the financial support from the National Natural Science Foundation of China (Grant Nos. 10675070 and 50701026), the National Basic Research Program of China (973 Program, 2007CB936601), and the Project funded by Tsinghua Basic Research Foundation.

PY - 2009/11

Y1 - 2009/11

N2 - 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.

AB - 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.

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