Mechanochemical synthesis of nanophotocatalysts SiO2/TiO2/Fe2O3: their structural, thermal and photocatalytic properties
| Autor: | Barbara Charmas, Karolina Kucio, Sylwia Pasieczna-Patkowska, Magdalena Zięzio |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Materials Science (miscellaneous) Kinetics Nanochemistry Cell Biology Atomic and Molecular Physics and Optics law.invention Nanomaterials Adsorption Chemical engineering law Desorption Photocatalysis Calcination Thermal stability Electrical and Electronic Engineering Physical and Theoretical Chemistry Biotechnology |
| Zdroj: | Applied Nanoscience. 10:4733-4746 |
| ISSN: | 2190-5517 2190-5509 |
| Popis: | In the study the mechanochemical synthesis was used to prepare photocatalytic materials based on TiO2, SiO2, and Fe2O3. During the preparation the impact of composition, milling speed, and calcination process on the properties of the composites was investigated. The structural and thermal properties of photocatalysts were determined using the N2 adsorption/desorption, XRD, and FT-IR/PAS methods. The thermal stability of the obtained materials was also examined (TG/DTG). Moreover, their photocatalytic activity was tested in relation to Methylene Blue at UV and Vis radiation. The results indicate that the mechanochemical synthesis in the high-energy planetary mill is an effective method for obtaining materials with photocatalytic properties at the UV and Vis radiation. It was shown that the removal process of MB may be described by the pseudo-first-order kinetics. |
| Databáze: | OpenAIRE |
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