Synthesis of nanopyroaurite using bauxite-washing residues as low cost starting material
| Autor: | G.C. Telles, R.S. Nascimento, Bruno Apolo Miranda Figueira, T. C. C. Lavra, J.M.R. Mercury, L. N. da Silva, P. Callejas |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Nanoparticle 02 engineering and technology engineering.material Raw material 010402 general chemistry 01 natural sciences law.invention Nanomaterials symbols.namesake law Hydrothermal synthesis General Materials Science Crystallization Aggregate (composite) Mechanical Engineering 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Bauxite Chemical engineering Mechanics of Materials engineering symbols 0210 nano-technology Raman spectroscopy |
| Zdroj: | Materials Letters. 235:246-249 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2018.09.166 |
| Popis: | In this work, nanopyroaurite was successfully obtained from bauxite-mining residues via co-precipitation and hydrothermal synthesis. The effect of crystallization time and temperature on the formation of layered-type material were investigated. The product was characterized by XRD, FT-IR, Raman spectroscopy and HR-TEM with EDS analysis. The results revealed that bauxite residues could be transformed into aggregate nanoparticles with nanosizes around 50–60 nm, confirming the residues as raw material for the synthesis of nanomaterial. |
| Databáze: | OpenAIRE |
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