Tailoring microstructure of silica xerogels via a facile synthesis approach
Silica xerogels of tailored microstructure were prepared via a facile synthesis approach. This approach entails the preparation of silica nanoparticles using the sol-gel method under the influence of low frequency ultra-sonication. By applying optimum synthesis conditions, silica nanoparticles of ta...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Mohammed Premier Oujda
2013
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/16313/ http://ir.unimas.my/id/eprint/16313/1/Tailoring%20microstructure%20of%20silica%20xerogels%20via%20a%20facile%20synthesis%20approach%20%28abstrak%29.pdf |
| Summary: | Silica xerogels of tailored microstructure were prepared via a facile synthesis approach. This approach entails the preparation of silica nanoparticles using the sol-gel method under the influence of low frequency ultra-sonication. By applying optimum synthesis conditions, silica nanoparticles of tailored mean sizes in the form of silica sol type B (158.3 ± 14.1 nm), and silica sol type M (83.1 ± 22.5 nm) were successfully synthesized. The various mean particle sizes were then mixed in predetermined molar ratios, and subsequently gelation under controlled conditions. The effect of adding polyvinyl pyrrolidone (PVP) as a polymeric surfactant on the microstructure of silica xerogels was also investigated. |
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