Facile Preparation of Soft Spherical and Cuboid-Like Silica Hollow Structures

doi:10.7517/j.issn.1674-0475.2010.01.59

Abstract

Abstract: Soft spherical and cuboid-like silica hollow structures were successfully fabricated using self-assembled pyrene nanostructures as template.When different amounts of pyrene self-assembled in CTAB solution,resultant self-assembled structures showed notable morphological changes from spheres to cuboids.These templates were employed for their sol-gel transcription of silica.As a result, transcribed silica structures of spheres to cuboids were obtained depending on the volume fraction of pyrene.The template was eventually removed by ethanol,giving soft spherical(ca.400 nm in diameter) and cuoboid-like(0.5—2.5μm in length) silica hollow structures.These results displayed the advantages of using organic nanostructures as template for fabrication of inorganic hollow structures in terms of easy syntheses,diverse structures,and flexibility of controlling the morphologies of inorganic structures.

Key words: pyrene, hollow silica sphere, cuboid-like silica hollow structure, self-assembly

CLC Number:

CHEN Xue-cheng, WANG Hang, ZHANG Shen, HE Pu, HE Jun-hui. Facile Preparation of Soft Spherical and Cuboid-Like Silica Hollow Structures[J]. Imaging Science and Photochemistry, 2010, 28(1): 59-64.

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