Comparative study of the efficiency of different noble metals supported on zirconium oxide in the catalytic wet air oxidation of bisphenol-A solution
| Autor: | Abdelhamid Ghorbel, Rahma Bensouilah, Zouhaier Ksibi, Tijani Hammedi, AdbelKader Ouakouak |
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| Rok vydání: | 2020 |
| Předmět: |
Bisphenol A
Materials science General Physics and Astronomy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry X-ray photoelectron spectroscopy Zirconium oxide Wet oxidation Physical and Theoretical Chemistry Fourier transform infrared spectroscopy 0210 nano-technology Nuclear chemistry |
| Zdroj: | Chemical Physics Letters. 761:138022 |
| ISSN: | 0009-2614 |
| Popis: | Noble metals supported on ZrO2 catalysts were elaborated using sol-gel and impregnation methods then studied for catalytic wet air oxidation of bisphenol-A (BPA) in water. The prepared solids were characterized by N2-physisorption at 77 k, XRD, TEM, TGA/TDA, FTIR spectroscopy, XPS and H2-TPR techniques. BPA solution of 10 mg/L was successfully oxidized at 100 °C and Pair = 20 bar. For pure ZrO2, a conversion of 49% was obtained within 5 h. The catalytic activity was improved by adding noble metals resulting in a BPA conversion surpassing 90% for 3%Ru/ZrO2 after 3 h. No catalyst deactivation was reported. |
| Databáze: | OpenAIRE |
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