Development of Plasmonic Cu2O/Cu Composite Arrays as Visible- and Near-Infrared-Light-Driven Plasmonic Photocatalysts

Kosuke Sugawa; Natsumi Tsunenari; Hideyuki Takeda; Saki Fujiwara; Tsuyoshi Akiyama; Jotaro Honda; Shuto Igari; Wataru Inoue; Kyo Tokuda; Naoto Takeshima; Yasuhiro Watanuki; Satoshi Tsukahara; Kouichi Takase; Tetsuo Umegaki; Yoshiyuki Kojima; Nobuyuki Nishimiya; Nobuko Fukuda; Yasuyuki Kusaka; Hirobumi Ushijima; Joe Otsuki

doi:10.1021/acs.langmuir.7b01052

Development of Plasmonic Cu₂O/Cu Composite Arrays as Visible- and Near-Infrared-Light-Driven Plasmonic Photocatalysts

Kosuke Sugawa, Natsumi Tsunenari, Hideyuki Takeda, Saki Fujiwara, Tsuyoshi Akiyama, Jotaro Honda, Shuto Igari, Wataru Inoue, Kyo Tokuda, Naoto Takeshima, Yasuhiro Watanuki, Satoshi Tsukahara, Kouichi Takase, Tetsuo Umegaki, Yoshiyuki Kojima, Nobuyuki Nishimiya, Nobuko Fukuda, Yasuyuki Kusaka, Hirobumi Ushijima, Joe Otsuki

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

We describe efficient visible- and near-infrared (vis/NIR) light-driven photocatalytic properties of hybrids of Cu₂O and plasmonic Cu arrays. The Cu₂O/Cu arrays were prepared simply by allowing a Cu half-shell array to stand in an oxygen atmosphere for 3 h, which was prepared by depositing Cu on two-dimensional colloidal crystals with a diameter of 543 or 224 nm. The localized surface plasmon resonances (LSPRs) of the arrays were strongly excited at 866 and 626 nm, respectively, at which the imaginary part of the dielectric function of Cu is small. The rate of photodegradation of methyl orange was 27 and 84 times faster, respectively, than that with a Cu₂O/nonplasmonic Cu plate. The photocatalytic activity was demonstrated to be dominated by Cu LSPR excitation. These results showed that the inexpensive Cu₂O/Cu arrays can be excellent vis/NIR-light-driven photocatalysts based on the efficient excitation of Cu LSPR.

Original language	English
Pages (from-to)	5685-5695
Number of pages	11
Journal	Langmuir
Volume	33
Issue number	23
DOIs	https://doi.org/10.1021/acs.langmuir.7b01052
Publication status	Published - Jun 13 2017
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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Sugawa, K., Tsunenari, N., Takeda, H., Fujiwara, S., Akiyama, T., Honda, J., Igari, S., Inoue, W., Tokuda, K., Takeshima, N., Watanuki, Y., Tsukahara, S., Takase, K., Umegaki, T., Kojima, Y., Nishimiya, N., Fukuda, N., Kusaka, Y., Ushijima, H., & Otsuki, J. (2017). Development of Plasmonic Cu₂O/Cu Composite Arrays as Visible- and Near-Infrared-Light-Driven Plasmonic Photocatalysts. Langmuir, 33(23), 5685-5695. https://doi.org/10.1021/acs.langmuir.7b01052

Sugawa, K, Tsunenari, N, Takeda, H, Fujiwara, S, Akiyama, T, Honda, J, Igari, S, Inoue, W, Tokuda, K, Takeshima, N, Watanuki, Y, Tsukahara, S, Takase, K, Umegaki, T, Kojima, Y, Nishimiya, N, Fukuda, N, Kusaka, Y, Ushijima, H & Otsuki, J 2017, 'Development of Plasmonic Cu₂O/Cu Composite Arrays as Visible- and Near-Infrared-Light-Driven Plasmonic Photocatalysts', Langmuir, vol. 33, no. 23, pp. 5685-5695. https://doi.org/10.1021/acs.langmuir.7b01052

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abstract = "We describe efficient visible- and near-infrared (vis/NIR) light-driven photocatalytic properties of hybrids of Cu2O and plasmonic Cu arrays. The Cu2O/Cu arrays were prepared simply by allowing a Cu half-shell array to stand in an oxygen atmosphere for 3 h, which was prepared by depositing Cu on two-dimensional colloidal crystals with a diameter of 543 or 224 nm. The localized surface plasmon resonances (LSPRs) of the arrays were strongly excited at 866 and 626 nm, respectively, at which the imaginary part of the dielectric function of Cu is small. The rate of photodegradation of methyl orange was 27 and 84 times faster, respectively, than that with a Cu2O/nonplasmonic Cu plate. The photocatalytic activity was demonstrated to be dominated by Cu LSPR excitation. These results showed that the inexpensive Cu2O/Cu arrays can be excellent vis/NIR-light-driven photocatalysts based on the efficient excitation of Cu LSPR.",

author = "Kosuke Sugawa and Natsumi Tsunenari and Hideyuki Takeda and Saki Fujiwara and Tsuyoshi Akiyama and Jotaro Honda and Shuto Igari and Wataru Inoue and Kyo Tokuda and Naoto Takeshima and Yasuhiro Watanuki and Satoshi Tsukahara and Kouichi Takase and Tetsuo Umegaki and Yoshiyuki Kojima and Nobuyuki Nishimiya and Nobuko Fukuda and Yasuyuki Kusaka and Hirobumi Ushijima and Joe Otsuki",

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AU - Sugawa, Kosuke

AU - Tsunenari, Natsumi

AU - Takeda, Hideyuki

AU - Fujiwara, Saki

AU - Akiyama, Tsuyoshi

AU - Honda, Jotaro

AU - Igari, Shuto

AU - Inoue, Wataru

AU - Tokuda, Kyo

AU - Takeshima, Naoto

AU - Watanuki, Yasuhiro

AU - Tsukahara, Satoshi

AU - Takase, Kouichi

AU - Umegaki, Tetsuo

AU - Kojima, Yoshiyuki

AU - Nishimiya, Nobuyuki

AU - Fukuda, Nobuko

AU - Kusaka, Yasuyuki

AU - Ushijima, Hirobumi

AU - Otsuki, Joe

PY - 2017/6/13

Y1 - 2017/6/13

N2 - We describe efficient visible- and near-infrared (vis/NIR) light-driven photocatalytic properties of hybrids of Cu2O and plasmonic Cu arrays. The Cu2O/Cu arrays were prepared simply by allowing a Cu half-shell array to stand in an oxygen atmosphere for 3 h, which was prepared by depositing Cu on two-dimensional colloidal crystals with a diameter of 543 or 224 nm. The localized surface plasmon resonances (LSPRs) of the arrays were strongly excited at 866 and 626 nm, respectively, at which the imaginary part of the dielectric function of Cu is small. The rate of photodegradation of methyl orange was 27 and 84 times faster, respectively, than that with a Cu2O/nonplasmonic Cu plate. The photocatalytic activity was demonstrated to be dominated by Cu LSPR excitation. These results showed that the inexpensive Cu2O/Cu arrays can be excellent vis/NIR-light-driven photocatalysts based on the efficient excitation of Cu LSPR.

AB - We describe efficient visible- and near-infrared (vis/NIR) light-driven photocatalytic properties of hybrids of Cu2O and plasmonic Cu arrays. The Cu2O/Cu arrays were prepared simply by allowing a Cu half-shell array to stand in an oxygen atmosphere for 3 h, which was prepared by depositing Cu on two-dimensional colloidal crystals with a diameter of 543 or 224 nm. The localized surface plasmon resonances (LSPRs) of the arrays were strongly excited at 866 and 626 nm, respectively, at which the imaginary part of the dielectric function of Cu is small. The rate of photodegradation of methyl orange was 27 and 84 times faster, respectively, than that with a Cu2O/nonplasmonic Cu plate. The photocatalytic activity was demonstrated to be dominated by Cu LSPR excitation. These results showed that the inexpensive Cu2O/Cu arrays can be excellent vis/NIR-light-driven photocatalysts based on the efficient excitation of Cu LSPR.

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Development of Plasmonic Cu₂O/Cu Composite Arrays as Visible- and Near-Infrared-Light-Driven Plasmonic Photocatalysts

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