A Facile Route to Prepare Hollow SiO2 Spheres Decorated with NiO Nanoparticles
X.B. Wang*
Anhui Key Laboratory of Advanced Building Materials, School of Materials and Chemical Engineering, Anhui University of Architecture, Hefei, P.R. China
*Corresponding author: Fax: +86 551 3828106; Tel: +86 551 3828100; E-mail: xbwang@aiai.edu.cn
J. Liu
Anhui Key Laboratory of Advanced Building Materials, School of Materials and Chemical Engineering, Anhui University of Architecture, Hefei, P.R. China
*Corresponding author: Fax: +86 551 3828106; Tel: +86 551 3828100; E-mail: xbwang@aiai.edu.cn
Z.D. Xu
Anhui Key Laboratory of Advanced Building Materials, School of Materials and Chemical Engineering, Anhui University of Architecture, Hefei, P.R. China
*Corresponding author: Fax: +86 551 3828106; Tel: +86 551 3828100; E-mail: xbwang@aiai.edu.cn
J. Li
Anhui Key Laboratory of Advanced Building Materials, School of Materials and Chemical Engineering, Anhui University of Architecture, Hefei, P.R. China
*Corresponding author: Fax: +86 551 3828106; Tel: +86 551 3828100; E-mail: xbwang@aiai.edu.cn
Asian Journal of Chemistry,
Vol. 23 No. 5 (2011): Vol 23 Issue 5
In this paper, the hollow SiO2 spheres decorated with NiO nanoparticles (denoted as SiO2/NiO hollow spheres) are successfully prepared using polystyrene (PS) spheres as hard template. At first, the PS-SiO2 core-shell structure is prepared by hydrolysis and condensation of tetraethyl orthosilicate (TEOS). Then the Ni source is incorporated by impregnation method. Finally, the SiO2/NiO hollow spheres are obtained by subsequent annealing process. The morphology of SiO2/NiO is hollow sphere with diameter of 1.5-2.5 μm by observation of scanning electron microscope and transmission electron microscope. Further investigation indicates that the NiO nanoparticles are dispersed on the shells of hollow spheres with diameter of 3-5 nm. Present work not only provides a facile route for preparation of SiO2/NiO hollow spheres, but gives an insight on the formation mechanism of hollow composite spheres.
Keywords
SiO2Hollow spheresNiONanoparticles.
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Wang*, X., Liu, J., Xu, Z., & Li, J. (2011). A Facile Route to Prepare Hollow SiO2 Spheres Decorated with NiO Nanoparticles. Asian Journal of Chemistry, 23(5), 2335–2338. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/10385
