Structural control of mesoporous silica nanoparticles in a binary surfactant system

Kenichi Ikari, Keisei Suzuki, Hiroaki Imai

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

The grain size and regularity of the hexagonal array of mesoporous silica nanoparticles were investigated in a binary surfactant system composed of cetyltrimethylammonium chloride and triblock copolymer EO106PO 60EO106. Structural control was achieved by varying the parameters for the prior hydrolysis of silicon alkoxide under an acidic condition and the subsequent assembly of silicates and surfactants under a basic condition. The formation of the mesoscale architectures was based on the balance between the ordered assembly of anionic silicates and the cationic surfactant through electrostatic interaction and the inhibition of grain growth with a nonionic amphiphilic agent through hydrogen bonds.

Original languageEnglish
Pages (from-to)802-806
Number of pages5
JournalLangmuir
Volume22
Issue number2
DOIs
Publication statusPublished - 2006 Jan 17

Fingerprint

Surface-Active Agents
Silicon Dioxide
Silicates
Surface active agents
surfactants
Silica
Nanoparticles
silicon dioxide
nanoparticles
Cationic surfactants
silicates
assembly
Coulomb interactions
Grain growth
Block copolymers
Hydrolysis
Hydrogen bonds
alkoxides
Silicon
regularity

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Structural control of mesoporous silica nanoparticles in a binary surfactant system. / Ikari, Kenichi; Suzuki, Keisei; Imai, Hiroaki.

In: Langmuir, Vol. 22, No. 2, 17.01.2006, p. 802-806.

Research output: Contribution to journalArticle

Ikari, Kenichi ; Suzuki, Keisei ; Imai, Hiroaki. / Structural control of mesoporous silica nanoparticles in a binary surfactant system. In: Langmuir. 2006 ; Vol. 22, No. 2. pp. 802-806.
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