Preparation of TiO2/Ag binary nanocomposite as high-activity visible-light-driven photocatalyst via graft polymerization

Jung Tae Park, Chang Soo Lee, Cheol Hun Park, Jong Hak Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We report the synthesis of a TiO2/Ag binary nanocomposite with high activity for visible-light-driven photocatalysts using graft copolymerization: (1) conversion of terminal OH groups on the surface of TiO2 nanoparticles to Cl groups, (2) graft polymerization from TiO2–Cl via ATRP with ionically charged poly(styrene sulfonic acid), (3) ion exchange process with an AgNO3 solution following sintering. TiO2/Ag binary nanocomposite showed enhanced photocatalytic performance for the degradation of methyl orange under visible light illumination. The improved photocatalytic performance of the TiO2/Ag binary nanocomposite was due to the plasmonic effect, recombination rate of electron–hole pairs that was suppressed by Ag nanoparticles.

Original languageEnglish
Pages (from-to)119-126
Number of pages8
JournalChemical Physics Letters
Volume685
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Photocatalysts
Grafts
Nanocomposites
nanocomposites
polymerization
Polymerization
preparation
Nanoparticles
nanoparticles
Styrene
Sulfonic Acids
Atom transfer radical polymerization
sulfonic acid
copolymerization
Copolymerization
polystyrene
Ion exchange
sintering
Sintering
Lighting

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

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abstract = "We report the synthesis of a TiO2/Ag binary nanocomposite with high activity for visible-light-driven photocatalysts using graft copolymerization: (1) conversion of terminal OH groups on the surface of TiO2 nanoparticles to Cl groups, (2) graft polymerization from TiO2–Cl via ATRP with ionically charged poly(styrene sulfonic acid), (3) ion exchange process with an AgNO3 solution following sintering. TiO2/Ag binary nanocomposite showed enhanced photocatalytic performance for the degradation of methyl orange under visible light illumination. The improved photocatalytic performance of the TiO2/Ag binary nanocomposite was due to the plasmonic effect, recombination rate of electron–hole pairs that was suppressed by Ag nanoparticles.",
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Preparation of TiO2/Ag binary nanocomposite as high-activity visible-light-driven photocatalyst via graft polymerization. / Tae Park, Jung; Soo Lee, Chang; Hun Park, Cheol; Kim, Jong Hak.

In: Chemical Physics Letters, Vol. 685, 01.01.2017, p. 119-126.

Research output: Contribution to journalArticle

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