Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Super Hydrophilic Properties of ZrO2 Thin Film Containing TiO2 Photo-Catalysis

광촉매 TiO2 함유 ZrO2 박막의 초친수성

  • Jung, Ki-Uk (Dept. of Material Science and Engineering, Kyungnam University) ;
  • Lee, Tea-Gu (Dept. of Advanced Materials Engineering, Kyungnam University) ;
  • Mun, Chong-Soo (Dept. of Advanced Materials Engineering, Kyungnam University)
  • 정기욱 (경남대학교 대학원 재료공학과) ;
  • 이태규 (경남대학교 신소재공학과) ;
  • 문종수 (경남대학교 신소재공학과)
  • Published : 2008.04.30
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Abstract

A $ZrO_2$ coating solution containing $ZrO_2$ photo-catalysis, which is transparent in visible light, was prepared by the hydrolysis of alkoxide, and thin films on the $SiO_2$ glass substrate were formed in a dipcoating method. These thin films were heat-treated at temperatures ranging from $250^{\circ}C-800^{\circ}C$ and their characteristics were subjected to thermal analysis, XRD, spectrometry, SEM, EDS, contact angle measurement, and AFM. Tetragonal $ZrO_2$ phase was found in the thin film heat treated at $450^{\circ}C$, and anatase $TiO_2$ phase was detected in the thin film heat-treated at $600^{\circ}C$ and above. The thickness of the films was approximately 300 nm, and the roughness was 0.66 nm. Thus, the film properties are excellent. The films are super hydrophilic with a contact angle of $4.0^{\circ}$; moreover, they have self-cleaning effect due to the photo catalytic property of anatase $TiO_2$.

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