Articles
  • Effect of interconnected molecular types on the packing rate of self-assembled monolayers of TMA-A zeolite nanocrystals on glass 
  • Ik Jin Kima,*, Wei Zhaoa, Jeong Ho Chungb, Marius Olarinc, Alexandru F. Trandabatc and Romeo-Cristian Ciobanac
  • a Institute for Processing and Application of Inorganic Materials (PAIM), Department of Materials Science and Engineering, Hanseo University, Haemi- Myun, Seosan City, Chungnam 356-820, Republic of Korea b Korea Institute of Ceramic Engineering and Technology(KICET), 233-5, Gasan-Dong, Guencheon-Gu, Seoul, 153-801, Korea c Department. of Electrical Engineering, Technical University Iasi, STr G. Cosbuc no.18, Iasi, 700470, Romania
Abstract
Well-shaped high quality TMA-A zeolite nanocrystals were synthesized in a mother solution with a composition of Alii-pro)3 : 2.2 TEOS : 2.4 TMAOH : 0.3 NaOH : 200H(2)O at 90 degrees C for 3 days using a hydrothermal method and self-assembled monolayers coated on glass substrates by different types of covalent linkages. The average size of the zeolites used was 60 similar to 100 nm with an average lattice constant of 24.61 angstrom. The self-assembled monolayers of zeolite oriented with faces parallel to the glass substrates showed only planes of the forms {h 0 0} with interconnected molecules. Scanning electron microscopy (SEM) and X-ray powder diffraction (XRD) were used to characterize the synthesized crystals and self-assembly monolayers of TMA-A zeolite with the surface-bound functional groups.

Keywords: zeolite; molecular types; self-assembly; packing rate; packing density

This Article

  • 2010; 11(3): 303-307

    Published on Jun 30, 2010

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