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Preliminary study of phosphate adsorption onto cerium oxide nanoparticles for use in water purification : nanoparticles synthesis and characterization
Recillas, Sonia (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
García, Ana (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
González, Edgar (Institut Català de Nanotecnologia)
Casals Mercadal, Eudald (Institut Català de Nanotecnologia)
Puntes, Víctor (Institut Català de Nanotecnologia)
Sánchez Ferrer, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Font Segura, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)

Data: 2012
Resum: 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.
Drets: Tots els drets reservats
Llengua: Anglès
Document: article ; recerca ; submittedVersion
Matèria: Cerium oxide nanoparticles ; Adsorption ; Desorption ; Phosphate ; Experimental design
Publicat a: Water science and technology, Vol. 66, Issue 3 (June 2012) , p. 503-509, ISSN 0273-1223

DOI: 10.2166/wst.2012.185

18 p, 1.7 MB

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Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Enginyeries > Grup de Recerca en Compostatge (GICOM)
Articles > Articles de recerca
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