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

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

Chem Commun (Camb). 2018 Jan 4;54(4):393-396. doi: 10.1039/c7cc07194a.

Authors

Kango Ishimoto¹, Tomoyuki Tajima, Hideaki Miyake, Masahiro Yamagami, Wataru Kurashige, Yuichi Negishi, Yutaka Takaguchi

Affiliation

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

PMID: 29250643
DOI: 10.1039/c7cc07194a

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.