Enhanced photocatalytic water splitting by BaLa4Ti4O15 loaded with ∼1 nm gold nanoclusters using glutathione-protected Au25 clusters

Yuichi Negishi; Masahiro Mizuno; Michiyo Hirayama; Mamiko Omatoi; Tomoaki Takayama; Akihide Iwase; Akihiko Kudo

doi:10.1039/C3NR01888A

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Enhanced photocatalytic water splitting by BaLa₄Ti₄O₁₅ loaded with ∼1 nm gold nanoclusters using glutathione-protected Au₂₅ clusters†

Yuichi Negishi,*^ab Masahiro Mizuno,^a Michiyo Hirayama,^a Mamiko Omatoi,^a Tomoaki Takayama,^a Akihide Iwase^ab and Akihiko Kudo*^ab

Author affiliations

* Corresponding authors

^a Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
E-mail: negishi@rs.kagu.tus.ac.jp, a-kudo@rs.kagu.tus.ac.jp
Fax: +81-3-5261-4631
Tel: +81-3-5228-9145

^b Research Institute for Science and Technology, Energy and Environment Photocatalyst Research Division, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan

Abstract

Glutathione-protected Au₂₅ clusters were used to load monodisperse gold nanoclusters (1.2 ± 0.3 nm) onto BaLa₄Ti₄O₁₅ to create photocatalysts. The photocatalytic activity of the resulting material for water splitting was determined to be 2.6 times higher than that of catalysts loaded with larger gold nanoparticles (10–30 nm) via conventional photodeposition.

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Article information

DOI: https://doi.org/10.1039/C3NR01888A
Article type: Communication
Submitted: 16 Apr 2013
Accepted: 17 May 2013
First published: 17 May 2013

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Nanoscale, 2013,5, 7188-7192

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Enhanced photocatalytic water splitting by BaLa₄Ti₄O₁₅ loaded with ∼1 nm gold nanoclusters using glutathione-protected Au₂₅ clusters

Y. Negishi, M. Mizuno, M. Hirayama, M. Omatoi, T. Takayama, A. Iwase and A. Kudo, Nanoscale, 2013, 5, 7188 DOI: 10.1039/C3NR01888A

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