A facile grafting method to synthesize novel monodispersive core-shell structure of spherical mesoporous silica@nanocrystalline zirconia

2004 ◽  
Vol 76 (1-3) ◽  
pp. 209-213 ◽  
Author(s):  
Hangrong Chen ◽  
Jianhua Gao ◽  
Meiling Ruan ◽  
Jianlin Shi ◽  
Dongsheng Yan
Keyword(s):  
Mesoporous Silica ◽  
Shell Structure ◽  
Core Shell ◽  
Nanocrystalline Zirconia ◽  
Core Shell Structure

scholarly journals Synthesis and Surface Properties of Silica Spheres with Core Shell Structure by One Convenient Method

2009 ◽  
Vol 2009 ◽  
pp. 1-5 ◽  
Author(s):  
D. P. Das ◽  
K. M. Parida ◽  
B. K. Mishra
Keyword(s):  
Mesoporous Silica ◽  
Shell Structure ◽  
Cost Effective ◽  
Molar Ratio ◽  
Ammonium Bromide ◽  
Core Shell ◽  
Silica Spheres ◽  
Core Shell Structure ◽  
Cetyltrimethyl Ammonium ◽  
Mesoporous Silica Spheres

Earlier, we have published a paper on the preparation of silica sphere using propanol as cosurfactant. We report here a highly cost-effective method of preparation of mesoporous silica spheres with core shell structure using sodium silicate as silica precursor, cetyltrimethyl ammonium bromide (CTAB) as surfactant, and methanol as cosurfactant. Thus after removal of the template by dissolutions or/and activation at higher temperature, mesoporous silica spheres with core shell structure were obtained. The products prepared with methanol to CTAB molar ratio 8.5 : 1 were confirmed to give best results. All the spherical products have very large surface area (∼589–1044 m2/g), pore volume (∼0.98–1.41 cm3/g), and ordered pore structure.

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