| Autor: |
Abigail Parra Parra, Marina Vlasova, Pedro Antonio Márquez Aguilar, Jorge Luis Hernández Morelos, Manuel Eduardo Serrano Nava |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Compounds, Vol 4, Iss 3, Pp 548-561 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2673-6918 |
| DOI: |
10.3390/compounds4030033 |
| Popis: |
In the present study, XRD, SEM/EDS, Raman, EMR/EPR spectroscopy, and vibrating sample magnetometry (VSM) were used to analyze the reduction of hematite by the carbonization products of waste activated sludge (WAS) at 500–1000 °C. The reduction process includes the following steps: α-Fe2O3 → Fe2O3 + Fe3O4 (Ttr~500 °C) → Fe3O4 (Ttr~600–700 °C) → FeO → Feamorph. (Ttr~1000 °C). The prevalence of certain phase compositions at different hematite reduction temperatures makes it possible to predict the areas viable for the application of reduced oxides: adsorbents (after Ttr~500 °C) → soft ferromagnetic materials (after Ttr~600–700 °C) → electrically engineered amorphous iron (after Ttr~1000 °C). |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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