Effect of hydrothermal treatment on the structure of an aluminosilicate polymer
| Autor: | Jaroslav Melar, Roman Slavík, Miroslav Pastorek, Vratislav Bednarik |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Thermogravimetric analysis
Scanning electron microscope Inorganic chemistry Infrared spectroscopy Hydrothermal treatment Geopolymerization chemistry.chemical_compound hydrothermal treatment Aluminosilicate Aluminosilicate polymer Materials Chemistry zeolite Zeolite QD1-999 Polycondensation Aqueous solution aluminosilicate polymer Phillipsite General Chemistry Silicate geopolymerization Chemistry chemistry Chemical engineering sense organs polycondensation |
| Zdroj: | Open Chemistry, Vol 11, Iss 5, Pp 782-789 (2013) Central European Journal of Chemistry |
| ISSN: | 2391-5420 |
| Popis: | The effect of hydrothermal treatment on the structure of an aluminosilicate polymer prepared by a polycondensation reaction between silicate and hydroxoaluminate in alkaline aqueous solution was studied. The structural changes were investigated using X-ray diffraction analysis, Fourier-transform infrared spectroscopy, scanning electron microscopy imaging and thermogravimetric analysis. The results indicated that the amorphous aluminosilicate polymer transformed into a crystalline product during the hydrothermal treatment at 145°C. The crystalline phase was identified as a mineral of the zeolite group, most likely phillipsite. This transformation required an alkaline environment during the hydrothermal treatment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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