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https://open.uns.ac.rs/handle/123456789/13855
Title: | Effect of surface functionalization on synthesis of mesoporous silica core/shell particles | Authors: | Nikolić, Milan Giannakopoulos, Konstantinos Bokorov, Miloš Srdić, Vladimir |
Issue Date: | 1-Jun-2012 | Publisher: | Elsevier | Journal: | Microporous and Mesoporous Materials | Abstract: | A pure and simple procedure for preparation of silica core/shell particles is reported. Core/shell particles were formed by assembling the primary silica nanoparticles synthesized by neutralization of highly basic sodium silicate solution, on the surface of monodispersed silica core (average size ∼0.4 μm). The core particles were prepared by hydrolysis and condensation of tetraethylorthosilicate. To improve assembling of primary silica particles on the surface of silica core particles, the latter were functionalized with 3-aminopropyltriethoxysilane (APTES) or poly(diallyldimethylammonium chloride) (PDDA). The obtained particles have mesoporous, relatively uniform and continuous silica shell and were prepared without pore-forming agents. The pore size and volume are easily adjustable by controlling the formation of primary silica nanoparticles during synthesis of core/shell particles. © 2011 Elsevier Inc. All rights reserved. | URI: | https://open.uns.ac.rs/handle/123456789/13855 | ISSN: | 13871811 | DOI: | 10.1016/j.micromeso.2011.12.046 |
Appears in Collections: | TF Publikacije/Publications |
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