Chemically modified graphene oxide-wrapped quasi-micro Ag decorated silver trimolybdate nanowires for photocatalytic applications

Kan Zhang, Nansra Heo, Xinjian Shi, Jong Hyeok Park

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We report a simple and versatile strategy for hybridizing 1-D silver trimolybdate wires (Ag2Mo3O10 Ws) and graphene oxide (GO) by a direct solution process. Because of the photoactive nature of Ag2Mo3O10 Ws, Ag particles were uniformly formed on their surfaces with the assistance of solar light. Enriched surface functional groups of GO from chemical activation induce a chemical coordination with these Ag particles. As a result, a uniform ternary hybrid mixture was successfully formed with metallic Ag nanoparticles as a bridge connecting activated GO and Ag2Mo3O10 Ws. We found that both excited GO and Ag2Mo3O10 could generate electron/hole pairs separated in space by metallic Ag as a solid-state electron mediator. The novel photocatalytic mechanism was confirmed using photocurrents, the electronic-band structure, and photoactivity correlation analysis.

Original languageEnglish
Pages (from-to)24023-24032
Number of pages10
JournalJournal of Physical Chemistry C
Volume117
Issue number45
DOIs
Publication statusPublished - 2013 Nov 14

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Silver
Oxides
Graphene
Nanowires
graphene
nanowires
silver
oxides
Photocurrents
Band structure
Electron energy levels
Functional groups
photocurrents
Chemical activation
wire
Wire
activation
Nanoparticles
solid state

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Cite this

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abstract = "We report a simple and versatile strategy for hybridizing 1-D silver trimolybdate wires (Ag2Mo3O10 Ws) and graphene oxide (GO) by a direct solution process. Because of the photoactive nature of Ag2Mo3O10 Ws, Ag particles were uniformly formed on their surfaces with the assistance of solar light. Enriched surface functional groups of GO from chemical activation induce a chemical coordination with these Ag particles. As a result, a uniform ternary hybrid mixture was successfully formed with metallic Ag nanoparticles as a bridge connecting activated GO and Ag2Mo3O10 Ws. We found that both excited GO and Ag2Mo3O10 could generate electron/hole pairs separated in space by metallic Ag as a solid-state electron mediator. The novel photocatalytic mechanism was confirmed using photocurrents, the electronic-band structure, and photoactivity correlation analysis.",
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Chemically modified graphene oxide-wrapped quasi-micro Ag decorated silver trimolybdate nanowires for photocatalytic applications. / Zhang, Kan; Heo, Nansra; Shi, Xinjian; Park, Jong Hyeok.

In: Journal of Physical Chemistry C, Vol. 117, No. 45, 14.11.2013, p. 24023-24032.

Research output: Contribution to journalArticle

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