Heterogeneous WO3/H2O2 system for degradation of Indigo Carmin dye from aqueous solution
| Autor: | Aimé Serge Ello, Diby Benjamin Ossonon, Donourou Diabaté, Sévérin N'goran Eroi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Dye Scanning electron microscope 020209 energy Filtration and Separation 02 engineering and technology Catalysis Indigo Education Chemical engineering 020401 chemical engineering X-ray photoelectron spectroscopy 0202 electrical engineering electronic engineering information engineering Indigo carmin 0204 chemical engineering Fourier transform infrared spectroscopy Fluid Flow and Transfer Processes Aqueous solution Process Chemistry and Technology Condensation Tungsten oxide equipment and supplies Hydrogen peroxide Degradation (geology) TP155-156 Energy (miscellaneous) Nuclear chemistry |
| Zdroj: | South African Journal of Chemical Engineering, Vol 37, Iss, Pp 53-60 (2021) |
| ISSN: | 1026-9185 |
| Popis: | In this work, tungsten oxide crystals (WO3), with different sizes and morphologies were prepared using the reflux condensation method. Tungsten oxide crystals were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Then, the particles were used as a heterogeneous Fenton-like catalyst in the presence of green oxidant H2O2 for Indigo Carmin (IC) dye degradation. The efficiency of the coupling WO3/H2O2 showed at 600 °C, that it was possible to remove about 90% of the initial color of IC after 120 min in a batch reaction at 65 °C. Moreover, the coupling maintained high activity after four continuous cycles when tungsten oxide particles were recorvered. |
| Databáze: | OpenAIRE |
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