Photo-induced H2 evolution from water via the dissociation of excitons in water-dispersible single-walled carbon nanotube sensitizers

Kango Ishimoto; Tomoyuki Tajima; Hideaki Miyake; Masahiro Yamagami; Wataru Kurashige; Yuichi Negishi; Yutaka Takaguchi

doi:10.1039/C7CC07194A

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Photo-induced H₂ evolution from water via the dissociation of excitons in water-dispersible single-walled carbon nanotube sensitizers†

Kango Ishimoto,^a Tomoyuki Tajima,

^a Hideaki Miyake,^b Masahiro Yamagami,^a Wataru Kurashige,^c Yuichi Negishi

^c and Yutaka Takaguchi

*^a

Author affiliations

* Corresponding authors

^a Graduate School of Environmental and Life Science, Okayama University, 3-1-1 Tsushima-Naka, Kita-ku, Okayama 700-8530, Japan
E-mail: yutaka@cc.okayama-u.ac.jp

^b Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan

^c Department of Applied Chemistry, Faculty of Science Division I, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan

Abstract

To observe a clear-cut example of the formation of mobile carriers from excitons on semiconducting single-walled carbon nanotubes (s-SWCNTs) surrounded by a medium with a high dielectric constant, water-dispersible s-SWCNT nanocomposites were fabricated by physical modifications using poly(amidoamine) dendrimers that contain an aliphatic core. The evolution of H₂ from water using these s-SWCNT/dendrimer nanocomposites as photosensitizers under irradiation with visible light demonstrated a photo-induced electron transfer from the s-SWCNTs to the co-catalysts.

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Article information

DOI: https://doi.org/10.1039/C7CC07194A
Article type: Communication
Submitted: 14 Sep 2017
Accepted: 09 Dec 2017
First published: 12 Dec 2017

Download Citation

Chem. Commun., 2018,54, 393-396

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Photo-induced H₂ evolution from water via the dissociation of excitons in water-dispersible single-walled carbon nanotube sensitizers

K. Ishimoto, T. Tajima, H. Miyake, M. Yamagami, W. Kurashige, Y. Negishi and Y. Takaguchi, Chem. Commun., 2018, 54, 393 DOI: 10.1039/C7CC07194A

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Chemical Communications