Structure and morphology transformation of ZnO by carbonation and thermal treatment
| Autor: | Tadeusz Borowiecki, Marcin Konkol, Paweł Kowalik, Paweł Wiercioch, Wiesław Próchniak, Michał Rawski, Katarzyna Antoniak-Jurak |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Mechanical Engineering Carbonation Thermal decomposition Mineralogy chemistry.chemical_element Sorption Thermal treatment Zinc Condensed Matter Physics chemistry Chemical engineering Mechanics of Materials Specific surface area General Materials Science Hydrozincite Saturation (chemistry) |
| Zdroj: | Materials Research Bulletin. 65:149-156 |
| ISSN: | 0025-5408 |
| DOI: | 10.1016/j.materresbull.2015.01.032 |
| Popis: | The effect of the CO 2 saturation time of the aqueous suspension of the raw, primary low-surface ZnO on material properties has been investigated. The materials have been investigated by means of the following techniques: XRD, TG/DTG coupled with MS, N 2 physical sorption and SEM. The results reveal platelet-like hydrozincite as a product of saturation, which undergoes thermal decomposition to ZnO of the similar morphology. The modification of ZnO through the CO 2 saturation results in essential changes of the morphology. During the subsequent thermal decomposition porous structure is created with a simultaneous drastic increase of the specific surface area. All these changes lead to the conversion of “common” zinc oxide into active zinc oxide. |
| Databáze: | OpenAIRE |
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