Alternate multilayer deposition from ammonium amphiphiles and titanium dioxide crystalline nanosheets using the Langmuir-Blodgett technique

Tetsuya Yamaki, Keisuke Asai

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

A new type of TiO2 nanosheet organic complex multilayer film was successfully prepared by the Langmuir-Blodgett technique. Surface pressure-area (π-A) curves demonstrated that a stable monolayer of dioctadecyldimethylammonium bromide (DODAB) was formed on an aqueous suspension of TiO2 nanosheets derived from an exfoliated layered titanate, HxTi2-x/4x/4O4·H2 O (x ∼ 0.7; □, vacancy). The hybrid monolayer of the ammonium amphiphiles and the TiO2 nanosheet was quantitatively transferred onto a hydrophobic quartz plate to form a multilayer film. X-ray diffraction measurements confirmed the formation of an ordered structure of DODAB/TiO2 with an interlayer distance of 3.4 nm.

Original languageEnglish
Pages (from-to)2564-2567
Number of pages4
JournalLangmuir
Volume17
Issue number9
Publication statusPublished - 2001 May 1
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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