In-situ FTIR investigation of heterogeneous Langmuir monolayers at the air/water interface

Tai Young Kim, Dong June Ahn

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In this study, we tried to measure ion reactivity at heterogeneous mixed Langmuir monolayers at the air/water interface by using in-situ near-normal external reflection FTIR spectroscopy. To achieve better spectral signals with less water vapor noise, close-packed monolayers of respective composition were chosen as backgrounds. Upon the adsorption of cadmium ions, the corresponding asymmetric carboxylate band clearly appeared. As the relative amount of non-reactive stearyl alcohols mixed with reactive stearic acids exceeded 15%, the adsorptivity of cadmium ions decreased nearly by half. The results have implications to molecular design of catalysts and biomineralization.

Original languageEnglish
Pages (from-to)205-208
Number of pages4
JournalMaterials Science and Engineering C
Issue number1-2
Publication statusPublished - 2004 Jan 5

Bibliographical note

Funding Information:
This research is supported by the Korea University.


  • Heterogeneous monolayers
  • In-situ FTIR
  • Metal ion adsorption

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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