EFFECT OF TITANIUM SLAG PARTICLE SIZE ON THE ABILITY TO SYNTHESISE TiO₂ BY THE HYDROTHERMAL ALKALINE DISSOLUTION METHOD
| Autor: | Hoang Trung Ngon, Phan Dinh Tuan, Trung Kien Kieu Do |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Ceramics-Silikáty, Vol 67, Iss 3, Pp 328-333 (2023) |
| Druh dokumentu: | article |
| ISSN: | 0862-5468 1804-5847 |
| DOI: | 10.13168/cs.2023.0033 |
| Popis: | Titanium slag is a by-product of iron extraction from Ilmenite ore. Titanium slag has a high TiO₂ content, so it is a suitable material for preparing TiO₂. This study investigated the influence of the slag particle size on the ability to synthesise TiO₂ by the hydrothermal alkalisation method. Three groups of titanium slag powder with average particle sizes from 18 μm to 108 μm were alkalised with a 10M NaOH solution to separate TiO₂ by the hydrothermal method. The mixing ratio by mass between the slag and the 10M NaOH solution is 1:1.5. The hydrothermal reaction was carried out at 180 °C for 7 hours. The products were analysed for their mineral, chemical, and microstructural properties using X-ray diffraction, X-ray fluorescence, scanning electron microscopy with energy-dispersive detector. The results show that the particle size significantly influences the efficiency of the TiO₂ chemical extraction from the titanium slag. The formed TiO₂ is of high purity, and the main mineral composition is anatase. The anatase polymorph of TiO₂ has the potential application as a photocatalyst and an antibacterial material. |
| Databáze: | Directory of Open Access Journals |
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