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Titania-Doped Silica Fibers Prepared by Electrospinning and Sol-Gel Process |
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| Authors: | Sung-Seen Choi Boyoung Chu Seung Goo Lee Sung Wook Lee Sung Soon Im Seong Hun Kim Jong Kyoo Park |
| Affiliation: | 1. Department of Applied Chemistry, College of Natural Sciences, Sejong University, 98 Koonja-dong, Kwangjin-gu, Seoul, 143-747, Korea 2. Department of Textile Engineering, Chungnam National University, 220, Gung-dong, Yuseong-gu, Daejeon, 305-764, Korea 3. Research Institute of Advanced Materials, Chungnam National University, Daejeon, 305-764, Korea 4. Department of Fiber &, Polymer Engineering, College of Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul, 133-791, Korea 5. Agency for Defense Development, Yuseong-gu, Daejeon, 305-600, Korea |
| Abstract: | Titania-doped silica fibers were prepared by electrospinning of the sol of silica containing titania. The electrospun fibers had ribbon type morphology. The fibers had significant quantities of hydroxyl groups of Si—OH and Ti—OH. The fibers did not have crystalline structure. Diameters of the fibers were reduced by solvent evaporation and calcination. The hydroxyl groups on the fibers disappeared by calcination. The hydroxyl groups, M—OH (M Si, Ti) were changed to M—O—M by intermolecular and intramolecular condensation reactions. |
| Keywords: | electrospun fiber titania-doped silica sol-gel process condensation |
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