티타니아 나노튜브(TNT) 박막의 제조 및 특성에 관한 연구

이영록; 정지훈; Youngrok Lee; Jihoon Jung

Korean Chemical Engineering Research, Vol.49, No.5, 652-656, October, 2011

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티타니아 나노튜브(TNT) 박막의 제조 및 특성에 관한 연구

Preparation and Characterizations of Titania Nanotube Thin Films

이영록, 정지훈 ^†

경기대학교 화학공학과, 443-760 경기도 수원시 영통구 이의동 산 94-6

Youngrok Lee, and Jihoon Jung^†

Department of Chemical Engineering, Kyonggi University, 94-6 Yiui-dong, Yeongtong-gu, Suwon, Gyeonggi-do 443-760, Korea

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초록

양극산화에 의해 티타니아 나노튜브(TNT) 박막과 나노필름(TNF) 박막을 제조하여 이의 광촉매 반응특성을 연구하였다. TNT 박막이 형성된 티타늄 판에 자외선을 조사하여 용액 내 메틸렌블루의 분해율을 측정하였다. TNT의 길이가 증가할수록 광촉매(PC) 반응에 의한 메틸렌블루 분해율이 증가하였다. 광전자의 재결합을 억제하기 위해 포텐셜을 가해준 광전자촉매(PEC) 반응에서는 전반적으로 분해율이 상승하였으며, 길이에 따른 분해율 차이가 상대적으로 작았다. 튜브형태가 아닌 필름형태의 TNF는 TNT에 비해 낮은 분해율을 나타내었으며, 광촉매 반응에서 분해율의 차이가 더 크게 나타났다.

Thin film of titania nanotubes(TNT) and titania nanofilms(TNF) was fabricated by anodizing for the study of the photo-catalytic reaction(PC) and photoelectrocatalytic reaction(PEC). Removal efficiency of methylene blue was investigated by UV radiation on the TNT coated titanium plate. Removal efficiency was increased with longer TNT length. Degradation efficiency of the PEC reaction was less sensitive than that of PC reaction. And Effect of TNT length is relatively small. Titania nanofilms(TNF) showed low efficiency than TNT. The efficiency drop of PC was larger than that of PEC.

Keywords:Titania;Nanotube;Anodizing;PC;PEC

[References]

Rachel A, Subrahmanyam M, Boule P, Appl. Catal. B: Environ., 37(4), 301 (2002)
Ahn SJ, Choi LK, Jung J, Journal of Advanced Oxidation Technologies., 10(2), 354 (2007)
Zwilling M, Aucouturier M, Darque-Ceretti E, Electrochim. Acta., 45(6), 921 (1991)
Paulose M, Shankar K, Varghese OK, Mor GK, Grimes CA, J. Phys. D: Appl. Phys., 39, 2498 (2006)
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Raja KS, Misra M, Mahajan VK, Gandhi T, Pillai P, Mohapatra SK, J. Power Sources, 161(2), 1450 (2006)
Raja KS, Mahajan VK, Misra M, J. Power Sources, 159(2), 1258 (2006)
Macak JM, Tsuchiya H, Ghicov A, Schmuki P, Electrochem. Commun., 7, 1138 (2005)
Perez-Blanco JM, Barber GD, Solar Energy Materials and Solar Cells., 92(9), 997 (2008)
Yang DJ, Park H, Cho SJ, Kim HG, Choi WY, J. Phys. Chem. Solids., 69(5-6), 1272 (2008)
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[1] Rachel A, Subrahmanyam M, Boule P, Appl. Catal. B: Environ., 37(4), 301 (2002)

[2] Ahn SJ, Choi LK, Jung J, Journal of Advanced Oxidation Technologies., 10(2), 354 (2007)

[3] Zwilling M, Aucouturier M, Darque-Ceretti E, Electrochim. Acta., 45(6), 921 (1991)

[4] Paulose M, Shankar K, Varghese OK, Mor GK, Grimes CA, J. Phys. D: Appl. Phys., 39, 2498 (2006)

[5] Paulose M, Varghese OK, Mor GK, Grimes CA, Ong KG, Nanotechnology., 17(2), 398 (2006)

[6] Mor GK, Shankar K, Varghese OK, Grimes CA, J. Mater. Res., 19, 2989 (2004)

[7] Mor GK, Shankar K, Paulose M, Varghese OK, Grimes CA, Nano Lett., 5(1), 191 (2005)

[8] Raja KS, Misra M, Mahajan VK, Gandhi T, Pillai P, Mohapatra SK, J. Power Sources, 161(2), 1450 (2006)

[9] Raja KS, Mahajan VK, Misra M, J. Power Sources, 159(2), 1258 (2006)

[10] Macak JM, Tsuchiya H, Ghicov A, Schmuki P, Electrochem. Commun., 7, 1138 (2005)

[11] Perez-Blanco JM, Barber GD, Solar Energy Materials and Solar Cells., 92(9), 997 (2008)

[12] Yang DJ, Park H, Cho SJ, Kim HG, Choi WY, J. Phys. Chem. Solids., 69(5-6), 1272 (2008)

[13] Pillai P, Raja KS, Misra M, J. Power Sources, 161(1), 524 (2006)

[14] Macak JM, Tsuchiya H, Bauer S, Ghicov A, Schmuki P, Barczuk PJ, Nowakowska MZ, Chojak M, Kulesza PJ, Electrochem. Commun., 7, 1417 (2005)