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J. Korean Ceram. Soc. > Volume 45(12); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(12): 839.
doi: https://doi.org/10.4191/kcers.2008.45.1.839
상온 진공 분말 분사공정에 의해 제조된 TiO2 광촉매 막의 두께변화에 따른 광촉매 특성
김근영, 류정호, 한병동, 최종진, 윤운하, 이병국, 박동수, 박찬1
한국기계연구원 부설 재료연구소 기능세라믹연구그룹
1부경대학교 재료공학과
Effect of Film Thickness on the Photocatalytic Performance of TiO2 Film Fabricated by Room Temperature Powder Spray in Vacuum Process
Kun-Young Kim, Jung-Ho Ryu, Byung-Dong Hahn, Jong-Jin Choi, Woon-Ha Yoon, Byoung-Kuk Lee, Dong-Soo Park, Chan Park1
Functional Ceramics Research Group, Korea Institute of Materials Science (KIMS)
1Division of Materials Science and Engineering, Pukyong National University
$TiO_2$ is an environment-friendly semiconducting material, and it has photocatalytic and hydrophilic effect. There are a lot of reports on the photocatalytic characteristics of $TiO_2$, such as organic pollutants resolving, anti-bacterial, and self-purification material. In this paper, $TiO_2$ micron-sized powders were deposited on the glass by room temperature powder spray in vacuum process, so called aerosol deposition (AD), and nano-grained $TiO_2$ photocatalytic thin films were fabricated. The thickness of the films were controlled by changing the number of deposition cycle. Morphologies and characteristics of the AD-$TiO_2$ thin films were examined by SEM, TEM, XRD, and UV-Visible Spectrophotometer. As the thickness of $TiO_2$ films increased, surface roughness increased. By this increment, the reaction area between film and pollutant was enlarged, resulting in better photocatalytic property.
Key words: Photocatalyst, $TiO_2$, Film, Aerosol deposition, RTPSV process
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