In this work a new approach has been developed for the synthesis of SiO2@Y2O3 particles with core–shellstructure. The method is based on the synthesis of a covalently bonded sacrificial polymer shell grown ontosilica particles. It is suitable to promote and stabilize the adsorption of different ions, namely Yttrium from itsnitrate solution. After calcination and consequent elimination of the sacrificial polymer shell, the SiO2@Y2O3core–shell particles are obtained. Results reveal that the shell thickness of these core–shell particles is higherand more uniform than that of particles prepared without sacrificial polymer shell.
Novel approach to the synthesis of core–shell particles by sacrificial polymer-shell method / Fabbri, Paola; M., Ghahari; Pilati, Francesco; T., Ebadzadeh; R., Aghababazadeh; G., Kavei. - In: MATERIALS LETTERS. - ISSN 0167-577X. - ELETTRONICO. - 64:20(2010), pp. 2265-2268. [10.1016/j.matlet.2010.07.033]
Novel approach to the synthesis of core–shell particles by sacrificial polymer-shell method
FABBRI, Paola;PILATI, Francesco;
2010
Abstract
In this work a new approach has been developed for the synthesis of SiO2@Y2O3 particles with core–shellstructure. The method is based on the synthesis of a covalently bonded sacrificial polymer shell grown ontosilica particles. It is suitable to promote and stabilize the adsorption of different ions, namely Yttrium from itsnitrate solution. After calcination and consequent elimination of the sacrificial polymer shell, the SiO2@Y2O3core–shell particles are obtained. Results reveal that the shell thickness of these core–shell particles is higherand more uniform than that of particles prepared without sacrificial polymer shell.
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