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Preparation of Spherical Hydrous Silica Oxide Particles under Acidic Condition via Sol-Gel Processing |
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| Authors: | Mamoru Aizawa Satsuki Kitajima Mika Ohsawa Wu Yang |
| Affiliation: | (1) Kansai Research Institute (KRI), Inorganic Fine Laboratory, Advanced Materials Research Center, Kyoto Research Park 17, Chudoji, Minami-machi, Shimogyo-ku, Kyoto, 600-8813, Japan |
| Abstract: | Preparation of spherical hydrous silica oxide particles via sol-gel processing was rarely reported. In this study, spherical silica particles were obtained in TEOS/AcOEt/AcOH 50% aq. system. The combination of AcOEt and AcOH 50% aq. widened the spherical particle-forming region. Their size ranged from some ten micrometers to some hundreds micrometers. Hydrophilic molecules or powders like Rhodamine 6G and phosphorescent powders were encapsulated in the spherical particles. |
| Keywords: | sol-gel processing acidic condition spherical silica particles particle size control encapsulation |
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