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Influence of Surfactant Concentration on the Surface Morphology of Hollow Silica Microspheres and Its Explanation

Published online by Cambridge University Press:  13 September 2011

Shiquan Liu ,
Meiying Wei ,
Pegie Cool ,
Cynthia Van Oers  and
Jiancun Rao
Shiquan Liu*
Affiliation:
School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, China
Meiying Wei
Affiliation:
School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, China
Pegie Cool
Affiliation:
Laboratory of Adsorption and Catalysis, University of Antwerp, Wilrijk 2610, Antwerp, Belgium
Cynthia Van Oers
Affiliation:
Laboratory of Adsorption and Catalysis, University of Antwerp, Wilrijk 2610, Antwerp, Belgium
Jiancun Rao
Affiliation:
Department of Materials Science, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
*
Corresponding author. E-mail: vctrliu@hotmail.com
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Abstract

The surface morphology of hollow silica microspheres has influence on their applications. After a thorough investigation of the deposition of silica nanoparticles on polystyrene (PS) beads and the surface morphology and texture of the resultant hollow silica shells with scanning electron microscopy, transmission electron microscopy, and N2-sorption measurements, the influence of surfactant [cetyltrimethylammonium bromide (CTAB)] concentration on the surface morphology of hollow silica microspheres templated by PS beads is explained. Previously, CTAB was believed to turn the surface charge of PS beads from negative into positive so that negatively charged silica could be deposited on the PS template. Here, we show CTA+ cations preferentially assemble with silica species to form silica-CTA+ composite nanoparticles. Since the zeta potential of silica-CTA+ composite nanoparticles is smaller than that of pure silica nanoparticles, these composite nanoparticles encounter less repulsion when they are deposited on the surface of PS beads and close to each other. As more CTAB is added, the silica-CTA+ nanoparticles are less negatively charged, and more compact and smooth hollow silica microspheres are obtained.

Keywords

electron microscopysurface morphologyhollow silica microspheresurfactant
Type
Materials Applications
Information
Microscopy and Microanalysis , Volume 17 , Issue 5 , October 2011 , pp. 766 - 771
Copyright
Copyright © Microscopy Society of America 2011

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References

REFERENCES

Bamnolker, H. & Margel, S. (1996). Dispersion polymerization of styrene in polar solvents: Effect of reaction parameters on microsphere surface composition and surface properties, size and size distribution, and molecular weight. J Polym Sci Polym Chem 34, 1857–1871.3.0.CO;2-M>CrossRefGoogle Scholar
Bamnolker, H., Nitzan, B., Gura, S. & Margel, S. (1997). New solid and hollow, magnetic and non-magnetic, organic-inorganic monodispersed hybrid microspheres: Synthesis and characterization. J Mater Sci Lett 16, 1412–1415.CrossRefGoogle Scholar
Blas, H., Save, M., Pasetto, P., Boissire, C., Sanchez, C. & Charleux, B. (2008). Elaboration of monodisperse spherical hollow particles with ordered meosporous silica shells via dual latex/surfactant templating: Radial orientation of mesopore channels. Langmuir 24, 13132–13137.CrossRefGoogle ScholarPubMed
Caruso, F., Caruso, R.A. & Mohwald, H. (1998). Nanoengineering of inorganic and hybrid hollow spheres by colloidal templating. Science 282, 1111–1114.CrossRefGoogle ScholarPubMed
Graf, C., Vossen, D.L.J., Imhof, A. & Van Blaaderen, A. (2003). A general method to coat colloidal particles with silica. Langmuir 19, 6693–6700.CrossRefGoogle Scholar
Guo, X., Kim, Y.S. & Kim, G.J. (2009). Fabrication of SiO2, Al2O3, and TiO2 microcapsules with hollow core and mesoporous shell structure. J Phys Chem C 113, 8313–8319.CrossRefGoogle Scholar
Kartsonakis, I.A., Liatsi, P., Danilidis, I., Bouzarelou, D. & Kordas, G. (2008). Synthesis, characterization and antibacterial action of hollow titania spheres. J Phys Chem Solids 69, 214–221.CrossRefGoogle Scholar
Kobayashi, Y., Misawa, K., Kobayashi, M., Takeda, M., Konno, M., Satake, M., Kawazoe, Y., Ohuchi, N. & Kasuya, A. (2004). Silica-coating of fluorescent polystyrene microspheres by a seeded polymerization technique and their photo-bleaching property. Colloids Surf A: Phys Eng Aspects 242, 47–52.CrossRefGoogle Scholar
Kulkarni, M.M., Bandyopadhyaya, R., Bhattacharya, B. & Sharma, A. (2006). Microstructural and mechanical properties of silica–PEPEG polymer composite xerogels. Acta Mater 54, 5231–5240.CrossRefGoogle Scholar
Le, Y., Chen, J., Wang, J., Shao, L. & Wang, W. (2004). A novel pathway for synthesis of silica hollowspheres with mesostructured walls. Mater Lett 58, 2105–2108.CrossRefGoogle Scholar
Liu, X.M., Du, X. & He, J.H. (2008). Hierarchically structured porous films of silica hollow spheres via layer-by-layer assembly and their superhydrophilic and antifogging properties. Chemphyschem 9, 305–309.CrossRefGoogle ScholarPubMed
Rouquerol, F., Rouquerol, J. & Sing, K. (1999). Adsorption by Powders and Porous Solids. London: Academic Press.Google Scholar
Tan, B. & Rankin, E. (2005). Dual latex/surfactant templating spherical hollow silica particles with ordered mesoporous shells. Langmuir 21, 8180–8187.CrossRefGoogle ScholarPubMed
Wu, X., Tian, Y., Cui, Y., Wei, L., Wang, Q. & Chen, Y. (2007). Raspberry-like silica hollow spheres: Hierarchical structures by dual latex/surfactant templating route. J Phys Chem C 111, 9704–9708.CrossRefGoogle Scholar
Yang, M., Wang, G. & Yang, Z. (2008). Synthesis of hollow spheres with mesoporous silica nanoparticles shell. Mater Chem Phys 111, 5–8.CrossRefGoogle Scholar
Yoon, S.B., Kim, J.Y., Kim, J.H., Park, S.G., Kim, J.H., Lee, C.W. & Yu, J.S. (2006). Template synthesis of nanostructured silica with hollow core and mesoporous shell structures. Curr Appl Phys 6, 1059–1063.CrossRefGoogle Scholar
Yuan, J., Wan, D. & Yang, Z. (2008). A facile method for the fabrication of thiol-functionalized hollow silica spheres. J Phys Chem C 112, 17156–17160.CrossRefGoogle Scholar
Zhang, G., Yu, Y., Chen, X., Han, Y., Di, Y., Yang, B., Xiao, F. & Shen, J. (2003). Silica nanobottles templated from functional polymer spheres. J Colloid Interf Sci 263, 467–472.CrossRefGoogle ScholarPubMed
Zhu, G., Qiu, S., Terasaki, O. & Wei, Y. (2001). Polystyrene bead assisted self-assembly of microstructured silica hollow spheres in highly alkaline media. J Am Chem Soc 123, 7723–7724.CrossRefGoogle ScholarPubMed
Zhu, Y., Shi, J., Chen, H., Shen, W. & Dong, X. (2005). A facile method to synthesize novel hollow mesoporous silicaspheres and advanced storage property. Micro Meso Mater 84, 217–222.CrossRefGoogle Scholar