| 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 |
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| ABSTRACT |
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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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