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KMID : 0604519980240030059
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Journal of the Society of Cosmetic Scientists of Korea
1998 Volume.24 No. 3 p.59 ~ p.64
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STUDIES FOR THE CHARACTER OF THE POROUS SILICA CONTAINING THE NANO-SIZED TIO$_2$, PARTICLE IN THE PORE
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Jeon Hyun-Pyo
Kong Woo-Sik
Lee Kyung-Chul
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Abstract
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In order to lower porosity of the porous silica, titanium alkoxide solution was filled in the pore of silica in the heating-vacuum condition. The specific surface area of modified samples was decreased effectively from 900 m^2/g to 100 m^2/g. (The aggregation phenomena in modified samples were improved fairly.) Samples were heated at 600 , and then the titanium alkoxide in the pore was decomposed completely to titanium oxide from TGA-DTA measurement. From SEM result, it was evident that titanium oxide did not coat the surface of the silica. The modified samples were analyzed using SEM, DTA-TGA, BET, and UV-visible spectrometer.
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KEYWORD
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Silica, Titanate, Pore size, Specific surface area, and Titanium alkoxide solution.
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