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J. Korean Ceram. Soc. > Volume 45(6); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(6): 331.
doi: https://doi.org/10.4191/kcers.2008.45.6.331
Tio2 나노튜브의 열처리 온도에 따른 Anatase 상의 분포와 그에 따른 광 촉매 효율
김세임, 황지훈1, 이승욱1, 김락경2, 손수민1, Ulugbek Shaislamov3, 양준모4, 양비룡5
국립금오공과대학교 신소재시스템공학부 정보나노소재공학과
1국립금오공과대학교 신소재시스템공학부 정보나노소재공학과
2국립금오공과대학교 신소재시스템공학부 정보나노소재공학과
3국립금오공과대학교 신소재시스템공학부 정보나노소재공학과
4한국과학기술원 부속 대전 나노 팹 센터
5국립금오공과대학교 신소재시스템공학부 정보나노소재공학과
Distribution of Anatase Phase Depending on the Thermal Treatment Temperature of Tio2 Nanotubes and Its Effects on the Photocatalytic Efficiency
Se-Im Kim, Ji-Hun Hwang1, Seung-Wook Lee1, Rak-Kyoung Kim2, Su-Min Son1, Ulugbek Shaislamov3, Jun-Mo Yang4, Bee-Lyong Yang5
cience and Engineering, Kumoh National Institute of Technology
1Department of Materials Science and Engineering, Kumoh National Institute of Technology
2National Nanofab Center, KAIST
3국립금오공과대학교 신소재시스템공학부 정보나노소재공학과
4한국과학기술원 부속 대전 나노 팹 센터
5국립금오공과대학교 신소재시스템공학부 정보나노소재공학과
ABSTRACT
The purpose of this study is to characterize the photo-catalytic efficiency of $TiO_2$ nanotube with respect to the distribution of anatase phase which can be changed by the annealing temperature of $TiO_2$ nanotube. $TiO_2$ nanotube was fabricated by the anodization method in the 0.5 wt% HF electrolyte. And then the $TiO_2$ nanotube was annealed at temperatures ranging from $380^{circ}C$ to $780^{circ}C$ in dry oxygen ambient for 2 h. For the photo-catalytic water-splitting tests, the photocurrent density was measured as a function of applied potential with a potentiostat using a Ag/AgCl reference, Pt counter electrode, and 1 M KOH electrolyte under illumination of UV by a Xe arc lamp of 1 KW. According to the UV photo-catalytic water-splitting tests, the nanotube annealed at $560^{circ}C$ was found to show the highest photocurrent density.
Key words: Photo-catalytic, Nanotube$TiO_2$$TiO_2$ nanotub, Crystallization
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