Synthesis and characterization of a Si–Ti–Zr oxide nanocomposite of hexagonal structure

By using tetraethylorthosilicate, aminopropyltriethoxysilane, titanium and zirconium tetrabutoxide as precursors, an Si–Ti–Zr oxide nanocomposite was synthesized through sol–gel process and characterized by thermogravimetry, scanning electron microscopy and X-ray diffraction patterns. A diffraction...

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Bibliographic Details
Published in:The international journal of inorganic materials 2001-11, Vol.3 (7), p.825-827
Main Author: de Farias, Robson Fernandes
Format: Article
Language:English
Subjects:
Hexagonal
Hybrids
Sol–gel
Titanium
Zirconium
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Summary:By using tetraethylorthosilicate, aminopropyltriethoxysilane, titanium and zirconium tetrabutoxide as precursors, an Si–Ti–Zr oxide nanocomposite was synthesized through sol–gel process and characterized by thermogravimetry, scanning electron microscopy and X-ray diffraction patterns. A diffraction peak at 5°, associated with the d001 diffraction plane confirms the hexagonal structure of the nanocomposite, which exhibits pores with a diameter of 1.8 nm. An increase of 100°C in the thermal stability of the compound is observed if Cu2+ cations are introduced, demonstrating the ability of the hybrid matrix to act as a sequestrating agent.
ISSN:1466-6049
1466-6049
DOI:10.1016/S1466-6049(01)00173-8