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Fabrication of Nanoporous Silica Nanospheres and Nanotubes by Inorganic and Organic Double Templates

Published online by Cambridge University Press:  17 March 2011

Jian-Feng Chen ,
Runjing Liu ,
Dapeng Cao ,
Zhigang Shen ,
Jimmy Yun ,
Jiexin Wang ,
Lei Shao  and
Weilie L. Zhou
Jian-Feng Chen
Affiliation:
Research Center of Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Runjing Liu
Affiliation:
Research Center of Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Dapeng Cao
Affiliation:
Research Center of Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China Nanomaterials Technology Pte Ltd, Blk 26 Ayer Rajah Crescent #07-02, Singapore 139944
Zhigang Shen
Affiliation:
Research Center of Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Jimmy Yun
Affiliation:
Nanomaterials Technology Pte Ltd, Blk 26 Ayer Rajah Crescent #07-02, Singapore 139944
Jiexin Wang
Affiliation:
Research Center of Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Lei Shao
Affiliation:
Research Center of Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148
Weilie L. Zhou
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148
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Abstract

Inorganic and organic double templates were used to fabricate silica nanospheres and nanotubes with nanochannels perpendicular to the shells. Sphere and needle like CaCO3 nanoparticles, synthesized by a high gravity reactive precipitation method, were used as inorganic templates and C16H33N(CH3)3Br (C16-CTAB) was used as an organic surfactant template. Field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) were employed to characterize the nanoporous structure. The nanochannels were found perpendicular to the surface of nanospheres and nanotubes. The size of nanochannels is about 3~5 nm. The size of hollow nanosphers and nanotubes can be controlled by the inorganic CaCO3 nanoparticle templates and the nanochannels in the shells can be tuned by different surfactant micelles. The nanospheres and nanotubes with nanochannels perpendicular to the shells have a potential application in chemical bio-catalyst, bio-separation, and drug delivery.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 823: Symposium W – Biological and Bioinspired Materials and Devices , 2004 , W4.16
Copyright
Copyright © Materials Research Society 2004

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