광촉매용 나노 TiO 2 용사코팅층 특성

이수완; 김학수; Yi Zeng; Bernard Hockey; Soo W Lee; Hak Soo Kim; Yi Zeng; Bernard Hockey

Korean Journal of Materials Research, Vol.12, No.10, 809-813, October, 2002

DOI10.3740/MRSK.2002.12.10.809 Export Citation

광촉매용 나노 TiO 2 용사코팅층 특성

Characterization of Thermal Spray Coating Layers of Nano Crystalline TiO 2 for Photocatalyst

이수완^†, 김학수, Yi Zeng, Bernard Hockey¹

선문대학교 재료화학공학부
¹NIST

Soo W Lee^†, Hak Soo Kim, Yi Zeng, and Bernard Hockey¹

Division of Matreials and Chemical Engineering, Sun Moon University, Korea
¹Ceramics Division, National Institute of Standards and Technology, NIST, Gaithersburg, MD, USA

E-mail:

Commercial nano crystalline TiO 2 powders were used to characterize photocatalyst, using thermal spray coating technique. The microstructure of coating layers were examined by SEM, FE-SEM and TEM. Also the cross sectional areas of TiO 2 coating layers were observed by SEM. The phases were analyzed by X-ray diffraction methed. Surface roughness and hardness were measured. It was found that phase transformation from anatase to rutile occurred, and the melted splats are all rutile, and unmeted nano particles were anatase. These unmelted anatase phase may enhance te play a role of photocatalyst.

Keywords:TiO 2;nano powder;thermal spray;anatase;rutile;phase transformation

[References]

Kato K, Tsuzuki A, Taoda H, Torii Y, Kato T, Butsugan Y, J. Mater. Sci., 29(22), 5911 (1994)
Kim KJ, Kim GS, Hong JS, Kang TS, Kim DH, Sol. Energy, 64(1), 61 (1998)
Cherepy NJ, Smestad GP, Gratzel M, Zhang JZ, J. Phys. Chem. B, 101(45), 9342 (1997)
Fujishima A, Hashimoto K, Waranabe T, 'TiO 2 photocatalysis Fundamentals and Applications,' BKC, Inc. Tokyo (1999) (1999)
United States Patent, No. 5827489, October 27, (1998) (1998)
Shirthikeyan M, Nanostruct. Mater., 5, 33 (1995)
Ha H, Nam S, Lim T, Oh I, Hong S, J. Membr. Sci., 111, 82 (1997)
Perry F, Billard A, Frantz C, Surf. Coat. Technol., 94, 681 (1997)
Sugail MH, Rao GM, Mohan S, J. Appl. Phys., 71, 1421 (1992)
Jang JM, Kim SK, Oh HJ, Lee JH, Chi CS, Korean J. Mater. Res., 11(1), 61 (2001)
Zhu Y, Huang M, Huang J, Ding C, J. Therm. Spray Technol., 8, 219 (1998)
Karthikeyan J, Berndt CC, Tikkanen J, Wang JY, King AH, Herman H, Nanostruct. Mater., 9, 137 (1997)
Telkamp VL, Lau ML, Fabel A, Lavernia EJ, Nanostruct. Mater., 9, 489 (1977)
Matsusaka S, Omori A, Toki Y, Thermal Spray 2001, Materials Park 87, Ohio, USA, (2001) (2001)

[1] Kato K, Tsuzuki A, Taoda H, Torii Y, Kato T, Butsugan Y, J. Mater. Sci., 29(22), 5911 (1994)

[2] Kim KJ, Kim GS, Hong JS, Kang TS, Kim DH, Sol. Energy, 64(1), 61 (1998)

[3] Cherepy NJ, Smestad GP, Gratzel M, Zhang JZ, J. Phys. Chem. B, 101(45), 9342 (1997)

[4] Fujishima A, Hashimoto K, Waranabe T, 'TiO 2 photocatalysis Fundamentals and Applications,' BKC, Inc. Tokyo (1999) (1999)

[5] United States Patent, No. 5827489, October 27, (1998) (1998)

[6] Shirthikeyan M, Nanostruct. Mater., 5, 33 (1995)

[7] Ha H, Nam S, Lim T, Oh I, Hong S, J. Membr. Sci., 111, 82 (1997)

[8] Perry F, Billard A, Frantz C, Surf. Coat. Technol., 94, 681 (1997)

[9] Sugail MH, Rao GM, Mohan S, J. Appl. Phys., 71, 1421 (1992)

[10] Jang JM, Kim SK, Oh HJ, Lee JH, Chi CS, Korean J. Mater. Res., 11(1), 61 (2001)

[11] Zhu Y, Huang M, Huang J, Ding C, J. Therm. Spray Technol., 8, 219 (1998)

[12] Karthikeyan J, Berndt CC, Tikkanen J, Wang JY, King AH, Herman H, Nanostruct. Mater., 9, 137 (1997)

[13] Telkamp VL, Lau ML, Fabel A, Lavernia EJ, Nanostruct. Mater., 9, 489 (1977)

[14] Matsusaka S, Omori A, Toki Y, Thermal Spray 2001, Materials Park 87, Ohio, USA, (2001) (2001)