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

doi:10.1246/cl.180999

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 › peer-review

4 Citations (Scopus)

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 (λ_irr = 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 language	English
Pages (from-to)	410-413
Number of pages	4
Journal	Chemistry Letters
Volume	48
Issue number	5
DOIs	https://doi.org/10.1246/cl.180999
Publication status	Published - 2019

Keywords

Carbon nanotube
Photocatalyst
Water-splitting

ASJC Scopus subject areas

Chemistry(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1246/cl.180999

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, 2019, p. 410-413.

Research output: Contribution to journal › Review article › peer-review

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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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%.",

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

note = "Funding Information: This work was partially supported by JSPS KAKENHI grants 15H03519 (Y.T.) and 16K05895 (T.T.). This work was performed under the approval of the Photon Factory Program Advisory Committee (Proposal No. 2016G106). Publisher Copyright: {\textcopyright} 2019 The Chemical Society of Japan.",

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AU - Negishi, Yuichi

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AU - Ohkubo, Takahiro

AU - Takaguchi, Yutaka

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N2 - 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%.

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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