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Direct Observation of Bimodal Amphiphilic Surface Structures of Zeolite Particles for a Novel Liquid-Liquid Phase Boundary Catalysis
Langmuir (2001)
  • Shigeru Ikeda, Hokkaido University
  • Hadi Nur, Hokkaido University
  • Tetsuro Sawadaishi, Hokkaido University
  • Kuniharu Ijiro, Hokkaido University
  • Masatsugu Shimomura, Hokkaido University
  • Bunsho Ohtani, Hokkaido University
Abstract

Amphiphilic NaY zeolite particles were prepared by a partial modification of the external surface of NaY with alkylsilyl groups. When the particles were added to a mixture of aqueous hydrogen peroxide and normal alkene, they were feasibly located just at the liquid-liquid phase boundary and efficiently catalyzed epoxidation of the alkenes even without stirring. Fluorescence microscopic observation of these particles selectively modified with fluorescent dye revealed that each particle has a bimodal amphiphilic surface structure; one side of the external surface is hydrophilic and the other is hydrophobic.

Disciplines
Publication Date
November, 2001
Citation Information
Shigeru Ikeda, Hadi Nur, Tetsuro Sawadaishi, Kuniharu Ijiro, et al.. "Direct Observation of Bimodal Amphiphilic Surface Structures of Zeolite Particles for a Novel Liquid-Liquid Phase Boundary Catalysis" Langmuir Vol. 17 Iss. 26 (2001)
Available at: http://works.bepress.com/hadi_nur/23/