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Issue 10, 2011
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Spherical silica micro/nanomaterials with hierarchical structures: Synthesis and applications

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Abstract

This paper reviews the progress made recently in synthesis and applications of spherical silica micro/nanomaterials with multilevel (hierarchical) structures. The spherical silica micro/nanomaterials with hierarchical structures are classified into four main structural categories that include (1) hollow mesoporous spheres, (2) core-in-(hollow porous shell) spheres, (3) hollow spheres with multiple porous shells and (4) hierarchically porous spheres. Due to the complex structures and being focused on spherical silica micro/nanomaterials, some novel methods based on the combination of two routine methods or two surfactants, and some special synthetic strategies are proposed to produce the spherical silica micro/nanomaterials with hierarchical structures. Compared with the same-sized solid, porous or hollow silica spheres, these fantastic spherical silica micro/nanomaterials with hierarchical structures exhibit enhanced properties which may enable them to be used in broad and promising applications as ideal scaffolds (carriers) for biological, medical, and catalytic applications.

Graphical abstract: Spherical silica micro/nanomaterials with hierarchical structures: Synthesis and applications

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Publication details

The article was received on 22 Jun 2011, accepted on 02 Aug 2011 and first published on 14 Sep 2011


Article type: Review Article
DOI: 10.1039/C1NR10660K
Nanoscale, 2011,3, 3984-4002

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    Spherical silica micro/nanomaterials with hierarchical structures: Synthesis and applications

    X. Du and J. He, Nanoscale, 2011, 3, 3984
    DOI: 10.1039/C1NR10660K

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