Exfoliation and film preparation of a layered titanate, Na 2Ti3O7, and intercalation of pseudoisocyanine dye

Nobuyoshi Miyamoto, Kazuyuki Kuroda, Makoto Ogawa

研究成果: Article

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抜粋

Fine powders of propylammonium-exchanged Na2Ti3O 7 were successfully converted to transparent thin films by swelling (and exfoliating) the material in water and subsequent casting and drying the obtained titanate sol on a substrate. The dispersion of the material was promoted by sonication and hydrothermal treatment of the sol. A self-standing film was also obtained by depositing the sol on a Teflon substrate and subsequent peeling off from the substrate by soaking in acetone. Taking advantage of the cation exchange capability of the films thus obtained, a cationic cyanine dye (pseudoisocyanine) was intercalated with retaintion of the transparency and morphology of the films. Polarized visible spectra revealed that the intercalated dyes were present as J-aggregates with the dipole moment oriented parallel to the film surface. The present methodology is a convenient way to fabricate titanate-dye hybrids as films.

元の言語English
ページ(範囲)165-170
ページ数6
ジャーナルJournal of Materials Chemistry
14
発行部数2
DOI
出版物ステータスPublished - 2004 1 21

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

フィンガープリント Exfoliation and film preparation of a layered titanate, Na <sub>2</sub>Ti<sub>3</sub>O<sub>7</sub>, and intercalation of pseudoisocyanine dye' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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