Preparation, Characterization, Structure and Formation Mechanism of a Novel Layered Structural Nanosilicate Magadiite Host

Abstract

Abstract: Stable layered structural silicate nanocomposites of TBAOH intercalated magadiite were obtained successfully by intercalation reaction methods. XRD, FTIR, SEM and HRTEM were used to characterize the structures of these nanocomposites. The XRD results and the approximate calculation of the interlayer distances show that a novel kind of structure with bilayer TBA⁺ ion intercalated magadiite was formed, further proved by HRTEM image and FTIR spectra. SEM image shows that the particle sizes exfoliated by TBAOH are about 10—100 nm. The reassembly of particles on the glass were also found after the solution evaporated. The self-assembly process of magadiite nanosheets was described on the basis of HRTEM analyses. These nanocomposites of layered magadiite are the potentional candidates of hosts of 2-dimensional host-guest nanocomposites and functional nanomaterials with open frameworks.

Key words: Intercalation reaction, Layered structural nanosilicate, Exfoliation, Self-assembly, Host material

CLC Number:

O614

TrendMD:

PENG Shu-Ge, GAO Qiu-Ming. Preparation, Characterization, Structure and Formation Mechanism of a Novel Layered Structural Nanosilicate Magadiite Host[J]. Chem. J. Chinese Universities, 2004, 25(4): 603.

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Preparation, Characterization, Structure and Formation Mechanism of a Novel Layered Structural Nanosilicate Magadiite Host

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