Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Super Hydrophilic Properties of SiO2-TiO2 Thin Film Prepared by Sol-Gel Method

졸-겔법에 의한 SiO2-TiO2 박막의 초친수성

  • Park, Min-Jung (Department of Material Science and Engineering, Kyungnam University) ;
  • Lee, Kyoung-Seok (Department of Material Science and Engineering, Kyungnam University) ;
  • Kang, Jong-Bong (Department of Advanced Materials Engineering, Kyungnam University) ;
  • Mun, Chong-Soo (Department of Advanced Materials Engineering, Kyungnam University)
  • 박민정 (경남대학교 대학원 재료공학과) ;
  • 이경석 (경남대학교 대학원 재료공학과) ;
  • 강종봉 (경남대학교 신소재공학과) ;
  • 문종수 (경남대학교 신소재공학과)
  • Published : 2007.03.27
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Abstract

[ $TiO_{2}-solution$ ] was aaded in $SiO_{2}-solution$ by various composition. $SiO_{2}-TiO_{2}$ thin films were obtained by the dip-coating method on the $SiO_{2}$ glass substrates, and then heat-treated at various temperature. Nano-size $TiO_{2}$ particles dispersed $SiO_{2}-TiO_{2}$ films showed absorption peak by quantum size effect at short wavelength region $350{\sim}400nm$, which made them good candidates for non-linear optical materials and photo-catalytic materials. The thickness of $SiO_{2}-TiO_{2}$ films were $300{\sim}430nm$. The contact angle of $SiO_{2}-TiO_{2}$ films for water was $5.3{\sim}47.9^{\circ}$, and therefore it is clear that $SiO_{2}-TiO_{2}$ films have super hydrophilic properties and the self-cleaning effects.

Keywords

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