산화티탄의 광전기화학 특성을 이용한 퍼클로레이트 이온 제거

민형섭; 이전국; Hyung-Seob Min; Jeon-Kook Lee

Korean Journal of Materials Research, Vol.18, No.8, 432-437, August, 2008

DOI10.3740/MRSK.2008.18.8.432 Export Citation

산화티탄의 광전기화학 특성을 이용한 퍼클로레이트 이온 제거

Photoelectrochemical Degradation of Perchlorate Ions by TiO2

민형섭, 이전국^†

한국과학기술연구원 재료기술 연구본부, 서울시 성북구 하월곡동 39-1

Hyung-Seob Min, and Jeon-Kook Lee^†

Korea Institute of Science and Technology, Materials Science and Technology Research Division, Seoul 136-791, Korea

E-mail:

Titanium oxide films and powders are attached onto carbon cloths via RF reactive sputtering and an epoxy resin mixture, respectively. TiO2/carbon composite materials were used to investigate the photoelectrochemical degradation of perchlorate ions in water. The energy band gaps of the RF-sputtered TiO2 thin films ranged from 3.35-3.44 eV. A photocurrent of the powdered TiO2 as illuminated by ultra-violet light for 30 min. was 2.79 mA/cm2. Perchlorate ions in water were shown to be degradable by a UV-illuminated TiO2 powder/carbon/Nafion/carbon composite.

Keywords:TiO2;photoelectrochemical;perchlorate ion;hydrogen generation

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[2] Logan BE, Lapoint D, Water Research, 36, 3647 (2002)

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[4] Yu X, Amrhein C, Matsumoto MR, Environ. Sci. Technol., 40, 1328 (2006)

[5] Fayyaz B, Harale A, Park BG, Liu PKT, Sahimi M, Tsotsis TT, Ind. Eng. Chem. Res., 44(25), 9398 (2005)

[6] Bikondoa O, Pang CL, Ithnin R, Muryn CA, Onishi H, Thornton G, Nat. Mater., 5(3), 189 (2006)

[7] Carp O, Huisman CL, Reller A, Prog. in Sol. State Chem., 32, 33 (2004)

[8] Rodriguez J, Gomez M, Lindquist SE, Granqvist CG, Thin Solid Films, 360(1-2), 250 (2000)

[9] Yuan RS, Guan RB, Shen WZ, Zheng JT, J. Colloid Interface Sci., 282(1), 87 (2005)

[10] Yuan R, Guan R, Liu P, Zheng J, Colloids and Surfacees A : Phsicochem. Eng. Aspects, 293, 80 (2007)

[11] Hashimoto K, Irie H, Fujishima A, Jpn. J. Appl. Phys., 44(12), 8269 (2005)

[12] Park H, Choi W, J. Phys. Chem. B, 109(23), 11667 (2005)

[13] Brudnik A, Gorzkowska-Sobas A, Pamula E, Radecka M, Zakrzewska K, J. Power Sources, 173(2), 774 (2007)

[14] Sreethawong T, Suzuki Y, Yoshikawa S, Int. J. Hydrog. Energy, 30(10), 1053 (2005)

[15] Khan SUM, Al-Shahry M, Ingler Jr WB, Science, 297, 2243 (2002)

[16] Radecka M, Trenczek-Zajac A, Zakrzewska K, Rekas M, J. Power Sources, 173(2), 816 (2007)