Photodeposition of metal and metal oxide at the TiOx nanosheet to observe the photocatalytic active site

Yasumichi Matsumoto; Shintaro Ida; Taishi Inoue

doi:10.1021/jp804625r

Photodeposition of metal and metal oxide at the TiO_x nanosheet to observe the photocatalytic active site

Yasumichi Matsumoto, Shintaro Ida, Taishi Inoue

Research output: Contribution to journal › Article › peer-review

69 Citations (Scopus)

Abstract

Photodeposition of Ag, Cu, Cu₂O, and MnO₂ at a TiO_x nanosheet with a lepidocrocite-type structure prepared from K_0.8Ti_1.73Li_0.27O₄ was carried out to observe the active sites for the photocatalytic reaction during UV illumination. Photodepositions of Ag, Cu, and Cu₂O, that is, photoreduction, occurred mainly at edges in the lateral direction of the nanosheet, indicating that the photoproduced electron moves in the network of Ti⁴⁺ ions in the nanosheet. On the other hand, photodeposition of MnO₂, that is, photooxidation, occurred on all over the surface of the nanosheet, indicating that the photoproduced hole exists at the O ^2- ion of the nanosheet surface.

Original language	English
Pages (from-to)	11614-11616
Number of pages	3
Journal	Journal of Physical Chemistry C
Volume	112
Issue number	31
DOIs	https://doi.org/10.1021/jp804625r
Publication status	Published - Aug 7 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/jp804625r

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title = "Photodeposition of metal and metal oxide at the TiOx nanosheet to observe the photocatalytic active site",

abstract = "Photodeposition of Ag, Cu, Cu2O, and MnO2 at a TiOx nanosheet with a lepidocrocite-type structure prepared from K0.8Ti1.73Li0.27O4 was carried out to observe the active sites for the photocatalytic reaction during UV illumination. Photodepositions of Ag, Cu, and Cu2O, that is, photoreduction, occurred mainly at edges in the lateral direction of the nanosheet, indicating that the photoproduced electron moves in the network of Ti4+ ions in the nanosheet. On the other hand, photodeposition of MnO2, that is, photooxidation, occurred on all over the surface of the nanosheet, indicating that the photoproduced hole exists at the O 2- ion of the nanosheet surface.",

author = "Yasumichi Matsumoto and Shintaro Ida and Taishi Inoue",

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T1 - Photodeposition of metal and metal oxide at the TiOx nanosheet to observe the photocatalytic active site

AU - Matsumoto, Yasumichi

AU - Ida, Shintaro

AU - Inoue, Taishi

PY - 2008/8/7

Y1 - 2008/8/7

N2 - Photodeposition of Ag, Cu, Cu2O, and MnO2 at a TiOx nanosheet with a lepidocrocite-type structure prepared from K0.8Ti1.73Li0.27O4 was carried out to observe the active sites for the photocatalytic reaction during UV illumination. Photodepositions of Ag, Cu, and Cu2O, that is, photoreduction, occurred mainly at edges in the lateral direction of the nanosheet, indicating that the photoproduced electron moves in the network of Ti4+ ions in the nanosheet. On the other hand, photodeposition of MnO2, that is, photooxidation, occurred on all over the surface of the nanosheet, indicating that the photoproduced hole exists at the O 2- ion of the nanosheet surface.

AB - Photodeposition of Ag, Cu, Cu2O, and MnO2 at a TiOx nanosheet with a lepidocrocite-type structure prepared from K0.8Ti1.73Li0.27O4 was carried out to observe the active sites for the photocatalytic reaction during UV illumination. Photodepositions of Ag, Cu, and Cu2O, that is, photoreduction, occurred mainly at edges in the lateral direction of the nanosheet, indicating that the photoproduced electron moves in the network of Ti4+ ions in the nanosheet. On the other hand, photodeposition of MnO2, that is, photooxidation, occurred on all over the surface of the nanosheet, indicating that the photoproduced hole exists at the O 2- ion of the nanosheet surface.

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Photodeposition of metal and metal oxide at the TiO_x nanosheet to observe the photocatalytic active site

Abstract

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