Treatment of Glyphosate Contaminated Wastewater based on the development of Fe doped SBA-15 as advanced catalysts for wet oxidation process under room conditions.
DOI:
https://doi.org/10.33414/rtyc.42.55-67.2021Keywords:
Polluted water treatment, Glyphosate, Nanomaterials, Fe contentAbstract
Nanostructured solids doped with various iron contents (1, 2.5, 5 and 10wt.%) were developed as efficient catalysts to degrade glyphosate aqueous solutions under extremely mild reaction conditions, atmospheric pressure and room temperature. These materials were characterized by XRD, N2 physisorption, UVvis-DR and XPS. Regular mesoporous structures typical of SBA-15 solids were obtained and the Fe speciation could be tuned by adjusting the metal nominal loading. The catalysts were evaluated in the glyphosate degradation-fragmentation reaction by catalytic wet oxidation with air, achieving herbicide degradation levels of the order of 80%. A reaction way based on the formation of a highly reactive oxo-iron (V) intermediary from Fe-glyphosate complex was proposed. In this manner, an interesting technology with lower environmental impact and greater sustainability for the remediation of water polluted with glyphosate is presented.
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Copyright (c) 2021 Eliana Gabriela Vaschetto, Candelaria Gómez, Pablo Ochoa Rodríguez, Sandra Casuscelli, Verónica Elías, Griselda Eimer
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