Preliminary study of phosphate adsorption onto cerium oxide nanoparticles for use in water purification
In this study, the synthesis and characterization of cerium oxide nanoparticles (CeO₂-NPs) and their adsorption potential for removing phosphate from water was evaluated using a multi-factor experimental design to explore the effect of various factors on adsorption. The objective function selected w...
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:164371 |
| Acceso en línea: | https://ddd.uab.cat/record/164371 https://dx.doi.org/urn:doi:10.2166/wst.2012.185 |
| Access Level: | acceso abierto |
| Palabra clave: | Cerium oxide nanoparticles Adsorption Desorption Phosphate Experimental design |
| Sumario: | In this study, the synthesis and characterization of cerium oxide nanoparticles (CeO₂-NPs) and their adsorption potential for removing phosphate from water was evaluated using a multi-factor experimental design to explore the effect of various factors on adsorption. The objective function selected was the percentage of phosphate removed from water, in which the phosphate concentration and the CeO₂-NP concentration are quantitative variables (factors in the experimental design). A lineal polynomial fitted the experimental results well (R² = 0.9803). The nanostructure was studied by transmission electron microscopy (TEM) and high-resolution TEM techniques before and after the adsorption process. During the adsorption and desorption processes several changes in the morphology and surface chemistry of the CeO₂-NPs were observed. |
|---|