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, Biològica i Ambiental)
García, Ana (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
González, Edgar E. (Institut Català de Nanociència i Nanotecnologia)
Casals, Eudald (Institut Català de Nanociència i Nanotecnologia)
Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Sanchez, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Font i Segura, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)

Date:	2012
Abstract:	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.
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Subject:	Cerium oxide nanoparticles ; Adsorption ; Desorption ; Phosphate ; Experimental design
Published in:	Water science and technology, Vol. 66, Issue 3 (June 2012) , p. 503-509, ISSN 0273-1223

DOI: 10.2166/wst.2012.185

Pre-print 18 p, 1.7 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Engineering > Composting Research Group (GICOM)
Articles > Research articles
Articles > Published articles