Carbon-nanotube-based photocatalysts for water splitting in cooperation with BiVO4 and [Co(bpy)3]3+/2+

Takumi Izawa, Vit Kalousek, Daiki Miyamoto, Noritake Murakami, Hideaki Miyake, Tomoyuki Tajima, Wataru Kurashige, Yuichi Negishi, Keita Ikeue, Takahiro Ohkubo, Yutaka Takaguchi

Research output: Contribution to journal › Review article

Abstract

Physical modifications of single-walled carbon nanotubes (SWCNTs) with fullerodendrons, followed by complexation with RuCl3 leads to the formation of CNT-photocatalysts that exhibit high quantum yields (QY = 12.8%) for the production of H2 from water, even under illumination with NIR light (λirr = 1005 nm) in the presence of sacrificial donor. A Z-scheme photocatalytic system, consisting of such a CNT-photocatalyst, BiVO4, and [Co(bpy)3]3+/2+ shows a production of H2 (17 μmol/h) and O2 (5.5μmol/h) under illumination from a solar simulator (AM-1.5) with a solar-to-hydrogen (STH) efficiency of 0.089%.

Original languageEnglish
Pages (from-to)410-413
Number of pages4
JournalChemistry Letters
Volume48
Issue number5
DOIs
Publication statusPublished - Jan 1 2019

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Carbon Nanotubes
Photocatalysts
Lighting
Water
Quantum yield
Single-walled carbon nanotubes (SWCN)
Complexation
Hydrogen
Simulators
tris(2,2'-bipyridyl)cobalt(III)
bismuth vanadium tetraoxide

Keywords

  • Carbon nanotube
  • Photocatalyst
  • Water-splitting

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Carbon-nanotube-based photocatalysts for water splitting in cooperation with BiVO4 and [Co(bpy)3]3+/2+ . / Izawa, Takumi; Kalousek, Vit; Miyamoto, Daiki; Murakami, Noritake; Miyake, Hideaki; Tajima, Tomoyuki; Kurashige, Wataru; Negishi, Yuichi; Ikeue, Keita; Ohkubo, Takahiro; Takaguchi, Yutaka.

In: Chemistry Letters, Vol. 48, No. 5, 01.01.2019, p. 410-413.

Research output: Contribution to journal › Review article

Izawa, T, Kalousek, V, Miyamoto, D, Murakami, N, Miyake, H, Tajima, T, Kurashige, W, Negishi, Y, Ikeue, K, Ohkubo, T & Takaguchi, Y 2019, 'Carbon-nanotube-based photocatalysts for water splitting in cooperation with BiVO4 and [Co(bpy)3]3+/2+ ', Chemistry Letters, vol. 48, no. 5, pp. 410-413. https://doi.org/10.1246/cl.180999
Izawa T, Kalousek V, Miyamoto D, Murakami N, Miyake H, Tajima T et al. Carbon-nanotube-based photocatalysts for water splitting in cooperation with BiVO4 and [Co(bpy)3]3+/2+ Chemistry Letters. 2019 Jan 1;48(5):410-413. https://doi.org/10.1246/cl.180999
Izawa, Takumi ; Kalousek, Vit ; Miyamoto, Daiki ; Murakami, Noritake ; Miyake, Hideaki ; Tajima, Tomoyuki ; Kurashige, Wataru ; Negishi, Yuichi ; Ikeue, Keita ; Ohkubo, Takahiro ; Takaguchi, Yutaka. / Carbon-nanotube-based photocatalysts for water splitting in cooperation with BiVO4 and [Co(bpy)3]3+/2+ In: Chemistry Letters. 2019 ; Vol. 48, No. 5. pp. 410-413.
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AU - Miyake, Hideaki

AU - Tajima, Tomoyuki

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AB - Physical modifications of single-walled carbon nanotubes (SWCNTs) with fullerodendrons, followed by complexation with RuCl3 leads to the formation of CNT-photocatalysts that exhibit high quantum yields (QY = 12.8%) for the production of H2 from water, even under illumination with NIR light (λirr = 1005 nm) in the presence of sacrificial donor. A Z-scheme photocatalytic system, consisting of such a CNT-photocatalyst, BiVO4, and [Co(bpy)3]3+/2+ shows a production of H2 (17 μmol/h) and O2 (5.5μmol/h) under illumination from a solar simulator (AM-1.5) with a solar-to-hydrogen (STH) efficiency of 0.089%.

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