Adsorption characteristics of organosilica based mesoporous materials

Akihiko Matsumoto, Halina Misran, Kazuo Tsutsumi

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Hybrid organosilica mesoporous materials with pores of ordered three-dimensional hexagonal structure were prepared by the hydrolysis and co-condensation of 1,2-bis(triethoxysilyl)ethane with various concentrations of a surfactant as structure directing agents. The materials had high pore volume of 1-1.5 mL/g and high surface area from 1057 to 1445 m2/g. Adsorption measurement and adsorption calorimetry revealed that the prepared materials exhibited high hydrophobicity and high affinity toward nonpolar organic vapor such as n-hexane. The dynamic adsorption properties of the materials for n-hexane in the presence of water vapor showed that these hybrid organosilica materials preferentially adsorbed n-hexane vapor and were stable in the presence of water compared to the siliceous MCM48.

Original languageEnglish
Pages (from-to)7139-7145
Number of pages7
JournalLangmuir
Volume20
Issue number17
DOIs
Publication statusPublished - 17 Aug 2004

All Science Journal Classification (ASJC) codes

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

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