| Autor: |
Sacco, Nicolas Alejandro, Zoppas, Fernanda Miranda, Aghemo, Vanina, Beltrame, Thiago, Marchesini, Fernanda Albana |
| Předmět: |
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| Zdroj: |
Water Supply; Feb2023, Vol. 23 Issue 2, p526-545, 20p |
| Abstrakt: |
Catalysts based on Pd/In were prepared through the wet impregnation method using Al2O3, SiO2, and TiO2 as supports. The impact of the synthesis procedure on N2 selectivity was studied. Characterization was performed using X-ray fluorescence and scanning electron microscopy-energy dispersive spectroscopy analysis. The catalytic performance of these materials was evaluated for nitrate removal from water in a batch reactor. The order of better nitrate removal was found to be Al2O3.TiO2.SiO2. The selectivity towards N2 was also impacted by the support used, with Al2O3-based catalysts being the most selective and TiO2-based the least due to strong metal-support interaction. The synthesis stages also impacted nitrate removal efficiency and selectivity, with the highest N2 selectivity (94.4% at 90% nitrate conversion) found in catalysts where In was added after Pd and underwent intermediate calcination, reduction and final reduction stages. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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