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 journalArticle

5 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 languageEnglish
Pages (from-to)165-169
Number of pages5
JournalJournal of Colloid And Interface Science
Volume421
DOIs
Publication statusPublished - 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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