Sol–gel synthesis of organic–inorganic hybrid materials comprising boehmite, silica, and thiazole dye

A hybrid material was prepared from a boehmite sol and a thiazole derived azo dye. The thiazole azo dyes were subjected to hydrolytic polycondensation with vinyltriethoxysilane, tetraethoxysilane, and aluminium isopropoxide in different ratios to afford a hybrid of boehmite, silica, and the thiazole...

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Bibliographic Details
Published in:Dyes and pigments 2012-08, Vol.94 (2), p.349-354
Main Authors: Yen, Ming-Shien, Kuo, Mu-Cheng
Format: Article
Language:English
Subjects:
Aluminium
Aluminum
Azo
Azo dye
Boehmite
Diffraction
Dyes
Hybrid materials
Silicon dioxide
Sol–gel
Tetraethoxysilane
Vinyltriethoxysilane
X-rays
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Summary:A hybrid material was prepared from a boehmite sol and a thiazole derived azo dye. The thiazole azo dyes were subjected to hydrolytic polycondensation with vinyltriethoxysilane, tetraethoxysilane, and aluminium isopropoxide in different ratios to afford a hybrid of boehmite, silica, and the thiazole heterocycle azo dye. The structures of these hybrid materials were characterized using X-ray diffraction, Fourier-transform infrared analysis, 29Si- and 27Al-nuclear magnetic resonance, ultraviolet–visible absorption spectrophotometry, and an energy-dispersive X-ray spectroscopy. [Display omitted] ► The novel hybrid materials comprise boehmite, silica, and heteroaryl thiazole dyes. ► The hybrid materials were synthesized via a sol–gel process with a precursor system. ► Thiazole azo dye can react with vinyltriethoxysilane to obtain hybrid materials. ► High contents of aluminium isopropoxide enhanced the Al–O–Al network structure.
ISSN:0143-7208
1873-3743
DOI:10.1016/j.dyepig.2012.01.020