광촉매용 Ti 양극산화 피막의 조직 및 성장거동

장재명; 오한준; 이종호; 조수행; 지충수; J.M. Jang; H.J. Oh; J.H. Lee; S.H. Cho; C.S. Chi

Korean Journal of Materials Research, Vol.12, No.5, 353-358, May, 2002

DOI10.3740/MRSK.2002.12.5.353 Export Citation

광촉매용 Ti 양극산화 피막의 조직 및 성장거동

Microstructure and Growth Behaviors of Ti Anodic Oxide Film for Photocatalysis

장재명, 오한준 ¹, 이종호 ², 조수행, 지충수 ^†

국민대학교 신소재공학부
¹한서대학교 재료공학과
²한서대학교 화학과

J.M. Jang, H.J. Oh¹, J.H. Lee², S.H. Cho, and C.S. Chi^†

Dept. of Advanced Materials Engineering, Kookmin University, Seoul, 136-702, Korea
¹Dept. of Materials Engineering, Hanseo University, Seosan, 352-820, Korea
²Department of Chemistry, Hanseo University, Seosan, 352-820, Korea

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The microstructure and growth behaviors of anodic oxide layers on titanium were investigated. TiO 2 oxide films were prepared by anodizing at constant voltages of 180 and 200V in sulfuric acid electrolyte. The anodic TiO 2 layer formed at 200V showed a cell structure with more irregular pore shapes around the interface between the anodic oxide layer and the substrate titanium compared with that formed at 180V. Irregular shape of pores at the initial stage of anodization seemed to be attributed to spark discharge phenomena which heavily occurred during increasing voltages. The thickness of the anodic oxide film increased linearly at a rate of 1.9×10 ?1 μm /min. The oxide layers formed at 180 and 200V were composed mainly of anatase structure, and the anodizing process could be suggested as one of fabrication methods of photocatalytic TiO 2 .

Keywords:anodizing;anatase;cell;photocatalytic TiO 2;growth behavior

[References]

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Goldstein S, Czapski G, Rabani J, J. Phys. Chem., 98(26), 6586 (1994)
Shibata T, Corros. Sci., 37, 253 (1995)
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McAleer JF, Peter LM, J. Electrochem. Soc., 129, 1252 (1982)
Yahalom J, Zahavi J, Electrochim. Acta, 15, 1429 (1970)
Aroal P, Corriu RJP, J. Mater. Chem., 6, 1925 (1996)

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[1] Gennari FC, J. Am. Ceramic Society, 82, 1915 (1999)

[2] Goldstein S, Czapski G, Rabani J, J. Phys. Chem., 98(26), 6586 (1994)

[3] Shibata T, Corros. Sci., 37, 253 (1995)

[4] Matthews RW, Water Resour, 20, 569 (1986)

[5] Linsebigler AL, Lu GQ, Yates JT, Chem. Rev., 95(3), 735 (1995)

[6] Borgarello E, Kiwi J, Pelizzetti E, Visca MJ, Am. Chem. Soc, 103, 6324 (1981)

[7] Scalfani A, Palmisano L, Davi E, New J. Chem., 14, 265 (1990)

[8] Kominami H, Murakami S, Kera Y, Ohtani B, Catal. Lett., 56(2-3), 125 (1998)

[9] Anpo M, Yamashita H, Ichihashi Y, Fujii Y, Honda M, J. Phys. Chem. B, 101(14), 2632 (1997)

[10] Shimizu K, Brown GM, Habazaki H, Corros. Sci., 40, 973 (1998)

[11] Dyer CK, Leach JS, J. Electrochem. Soc., 125, 1032 (1978)

[12] McAleer JF, Peter LM, J. Electrochem. Soc., 129, 1252 (1982)

[13] Yahalom J, Zahavi J, Electrochim. Acta, 15, 1429 (1970)

[14] Aroal P, Corriu RJP, J. Mater. Chem., 6, 1925 (1996)