Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.matlet.2011.03.045
Title: Sol-gel synthesis, microstructure and adsorption properties of hollow silica spheres
Authors: Fan, H.
Lei, Z. 
Pan, J.H.
Zhao, X.S. 
Keywords: Microstructure
Porous materials
Sol-gel preparation
Issue Date: 30-Jun-2011
Source: Fan, H., Lei, Z., Pan, J.H., Zhao, X.S. (2011-06-30). Sol-gel synthesis, microstructure and adsorption properties of hollow silica spheres. Materials Letters 65 (12) : 1811-1814. ScholarBank@NUS Repository. https://doi.org/10.1016/j.matlet.2011.03.045
Abstract: Spherical colloidal particles with a hollow interior and a mesoporous shell are particularly useful for drug delivery and release because such spheres combine the unique properties of hollow interior (for storing the drug) with mesoporous shell (for controlled release). Hollow silica spheres (HSS) with a mesoporous shell were prepared via a sol-gel process in the presence of dual templates polystyrene spheres and cetyltrimethylammonium bromide for creating the hollow core and mesopore shell. The effect of the ratio of silica precursor over polystyrene spheres on particle morphology and pore structure of the HSS was investigated. The adsorption kinetics of methyl blue on the HSS was evaluated and correlated with the mesoporous shell structure. © 2011 Elsevier B.V. All rights reserved.
Source Title: Materials Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/64601
ISSN: 0167577X
DOI: 10.1016/j.matlet.2011.03.045
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