Efficiency of magnetite as nanocrystalline bulk catalyst for the reduction of 4-nitrophenol
| Autor: | Amar Djadoun, Amel Benadda-kordjani, Yasmina Hammiche-Bellal, Rafik Benrabaa, Laaldja Meddour-Boukhobza |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Scanning electron microscope Process Chemistry and Technology 4-Nitrophenol 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Pollution Redox Nanocrystalline material 0104 chemical sciences Catalysis chemistry.chemical_compound Reaction rate constant Chemical engineering chemistry Chemical Engineering (miscellaneous) Temperature-programmed reduction 0210 nano-technology Waste Management and Disposal Magnetite |
| Zdroj: | Journal of Environmental Chemical Engineering. 6:2355-2362 |
| ISSN: | 2213-3437 |
| DOI: | 10.1016/j.jece.2018.03.042 |
| Popis: | Magnetite nanocristals were prepared via the co-precipitation technique. X-ray Diffraction, surface area measurements, Scanning Electron Microscopy/Energy Dispersive X-Ray Analysis and Temperature Programmed Reduction technique were used for the characterization of the prepared solids. Their catalytic performance was investigated in the 4-nitrophenol reduction. It has been found that the thermal preparation conditions strongly influenced the properties of the prepared samples. Hot co-precipitation leads to a decrease in catalytic performance regardless of the catalyst amount. The reaction duration decreases when increasing the catalyst amount. The catalytic behavior was directly related to the redox properties and the rate constant values were found to be significant in comparison with the literature data. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect