title: Preliminary study of phosphate adsorption onto cerium oxide nanoparticles for use in water purification; nanoparticles synthesis and characterization.
abstract: In this study, the synthesis and characterization of cerium oxide nanoparticles (CeO(2)-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 CeO(2)-NP concentration are quantitative variables (factors in the experimental design). A lineal polynomial fitted the experimental results well (R(2) = 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 CeO(2)-NPs were observed.
authors: Department of Chemical Engineering, Universitat Autònoma de Barcelona, Bellaterra, Spain.
authors: Sonia
authors: S
authors: Recillas
authors: Ana
authors: A
authors: García
authors: Edgar
authors: E
authors: González
authors: Eudald
authors: E
authors: Casals
authors: Victor
authors: V
authors: Puntes
authors: Antoni
authors: A
authors: Sánchez
authors: Xavier
authors: X
authors: Font
mesh_terms: D000327:Adsorption; D002563:Cerium / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D010710:Phosphates / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*; D014961:X-Ray Diffraction
chemical_list: D010710:Phosphates; D002563:Cerium; C030583:ceric oxide