Nanospace-enhanced photoreduction for the synthesis of copper(I) oxide nanoparticles under visible-light irradiation

Takahiro Ohkubo; Mitsuhiro Ushio; Koki Urita; Isamu Moriguchi; Bashir Ahmmad; Atsushi Itadani; Yasushige Kuroda

doi:10.1016/j.jcis.2014.01.035

Nanospace-enhanced photoreduction for the synthesis of copper(I) oxide nanoparticles under visible-light irradiation

Takahiro Ohkubo, Mitsuhiro Ushio, Koki Urita, Isamu Moriguchi, Bashir Ahmmad, Atsushi Itadani, Yasushige Kuroda

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

8 Citations (Scopus)

Abstract

Nanoparticles of copper(I) oxide (cuprous oxide; Cu₂O) were able to be synthesized from nano-restricted copper acetate (Cu(OAc)₂) in micropores of single-wall carbon nanotubes (SWNTs) by visible-light photoreduction. The specific structure of confined Cu(OAc)₂ in the micropore is indispensable for the reduction process to Cu₂O by the irradiation, because, in general, aqueous solution of Cu(OAc)₂ can be reduced under UV-light irradiated conditions. The present results strongly suggest that the micropore of SWNTs whose pore width is in the micropore-size range can play as nanoreactor space for the synthesis of Cu₂O through the nano-restricted precursor whose reactivity is different from that in the bulk phase.

Original language	English
Pages (from-to)	165-169
Number of pages	5
Journal	Journal of Colloid And Interface Science
Volume	421
DOIs	https://doi.org/10.1016/j.jcis.2014.01.035
Publication status	Published - May 1 2014

Keywords

Adsorption
Cuprous oxide (CuO)
Nanoparticle
Photoreduction
Single-wall carbon nanotube
XAFS

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

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10.1016/j.jcis.2014.01.035

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@article{ad0a85cac30b47a3b1a248fa4fac62b6,

title = "Nanospace-enhanced photoreduction for the synthesis of copper(I) oxide nanoparticles under visible-light irradiation",

abstract = "Nanoparticles of copper(I) oxide (cuprous oxide; Cu2O) were able to be synthesized from nano-restricted copper acetate (Cu(OAc)2) in micropores of single-wall carbon nanotubes (SWNTs) by visible-light photoreduction. The specific structure of confined Cu(OAc)2 in the micropore is indispensable for the reduction process to Cu2O by the irradiation, because, in general, aqueous solution of Cu(OAc)2 can be reduced under UV-light irradiated conditions. The present results strongly suggest that the micropore of SWNTs whose pore width is in the micropore-size range can play as nanoreactor space for the synthesis of Cu2O through the nano-restricted precursor whose reactivity is different from that in the bulk phase.",

keywords = "Adsorption, Cuprous oxide (CuO), Nanoparticle, Photoreduction, Single-wall carbon nanotube, XAFS",

author = "Takahiro Ohkubo and Mitsuhiro Ushio and Koki Urita and Isamu Moriguchi and Bashir Ahmmad and Atsushi Itadani and Yasushige Kuroda",

note = "Funding Information: This work was partially supported by Grant-in-Aid for Scientific Research (A) (No. 21245006) from Japan Society for the Promotion of Science (JSPS), Inamori Foundation, The Yakumo Foundation for Environmental Science, Tokyo Ohka Foundation for the Promotion of Science and Technology, and Mukai Science and Technology Foundation. Also, this work has been performed under the approval of the Photon Factory Program Advisory Committee (Proposal Nos. 2010G148 and 2012G023) and the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal Nos. 2011B1885 and 2012A1266). In addition, we wish to express our appreciation to Dr. S. Kim and Dr. N. Tsuji (JASRI) for their assistance on the XRD experiments at SPring-8 and to Professor Y. Takaguchi (Okayama Univ.) for his support to measure the power of visible-light source. ",

year = "2014",

month = may,

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doi = "10.1016/j.jcis.2014.01.035",

language = "English",

volume = "421",

pages = "165--169",

journal = "Journal of Colloid and Interface Science",

issn = "0021-9797",

publisher = "Academic Press Inc.",

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T1 - Nanospace-enhanced photoreduction for the synthesis of copper(I) oxide nanoparticles under visible-light irradiation

AU - Ohkubo, Takahiro

AU - Ushio, Mitsuhiro

AU - Urita, Koki

AU - Moriguchi, Isamu

AU - Ahmmad, Bashir

AU - Itadani, Atsushi

AU - Kuroda, Yasushige

N1 - Funding Information: This work was partially supported by Grant-in-Aid for Scientific Research (A) (No. 21245006) from Japan Society for the Promotion of Science (JSPS), Inamori Foundation, The Yakumo Foundation for Environmental Science, Tokyo Ohka Foundation for the Promotion of Science and Technology, and Mukai Science and Technology Foundation. Also, this work has been performed under the approval of the Photon Factory Program Advisory Committee (Proposal Nos. 2010G148 and 2012G023) and the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal Nos. 2011B1885 and 2012A1266). In addition, we wish to express our appreciation to Dr. S. Kim and Dr. N. Tsuji (JASRI) for their assistance on the XRD experiments at SPring-8 and to Professor Y. Takaguchi (Okayama Univ.) for his support to measure the power of visible-light source.

PY - 2014/5/1

Y1 - 2014/5/1

N2 - Nanoparticles of copper(I) oxide (cuprous oxide; Cu2O) were able to be synthesized from nano-restricted copper acetate (Cu(OAc)2) in micropores of single-wall carbon nanotubes (SWNTs) by visible-light photoreduction. The specific structure of confined Cu(OAc)2 in the micropore is indispensable for the reduction process to Cu2O by the irradiation, because, in general, aqueous solution of Cu(OAc)2 can be reduced under UV-light irradiated conditions. The present results strongly suggest that the micropore of SWNTs whose pore width is in the micropore-size range can play as nanoreactor space for the synthesis of Cu2O through the nano-restricted precursor whose reactivity is different from that in the bulk phase.

AB - Nanoparticles of copper(I) oxide (cuprous oxide; Cu2O) were able to be synthesized from nano-restricted copper acetate (Cu(OAc)2) in micropores of single-wall carbon nanotubes (SWNTs) by visible-light photoreduction. The specific structure of confined Cu(OAc)2 in the micropore is indispensable for the reduction process to Cu2O by the irradiation, because, in general, aqueous solution of Cu(OAc)2 can be reduced under UV-light irradiated conditions. The present results strongly suggest that the micropore of SWNTs whose pore width is in the micropore-size range can play as nanoreactor space for the synthesis of Cu2O through the nano-restricted precursor whose reactivity is different from that in the bulk phase.

KW - Adsorption

KW - Cuprous oxide (CuO)

KW - Nanoparticle

KW - Photoreduction

KW - Single-wall carbon nanotube

KW - XAFS

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JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

ER -

Nanospace-enhanced photoreduction for the synthesis of copper(I) oxide nanoparticles under visible-light irradiation

Abstract

Keywords

ASJC Scopus subject areas

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