Retention of liquid aromatic contaminants by hydrotalcites, derived mixed oxides, and reconstructed hydrotalcites
Anionic clays or hydrotalcites are multifunctional materials that can improve processes such as adsorption of contaminants. Among these, aromatic organic compounds represent an environmental problem, since they are dispersed in wastewater usually generated by the petrochemical industry. This work pr...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2022 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Revista Internacional de Contaminación Ambiental |
| Idioma: | español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/53995 |
| Acceso en línea: | https://www.revistascca.unam.mx/rica/index.php/rica/article/view/53995 |
| Access Level: | acceso abierto |
| Palabra clave: | layered double hydroxides adsorbents organic pollutants aromatic compounds BTEX-phenol hidróxidos dobles laminares adsorbentes contaminantes orgánicos compuestos aromáticos BTEX-fenol |
| Sumario: | Anionic clays or hydrotalcites are multifunctional materials that can improve processes such as adsorption of contaminants. Among these, aromatic organic compounds represent an environmental problem, since they are dispersed in wastewater usually generated by the petrochemical industry. This work presents the synthesis of hydrotalcites and mixed oxides derived from hydrotalcites, used in the adsorption of organic pollutants of the BTEX-phenol present in aqueous media. The results were compared with those of the reconstructed hydrotalcites in presence of BTEX-phenol. It was found that the adsorptive properties depend on the chemical composition and the structural properties of the materials. Although the initial hydrotalcites and the derived mixed oxides were efficient adsorbents, the regenerated hydrotalcites were much more active. |
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