화학기상증착법으로 제조한 TiO2 막의 광촉매 활성

정상철; 김상채; 서성규; Sang-Chul Jung; Sang-Chai Kim; Seong-Gyu Seo

HWAHAK KONGHAK, Vol.39, No.4, 385-389, August, 2001

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화학기상증착법으로 제조한 TiO2 막의 광촉매 활성

Photocatalytic Activity of the TiO2 Film Grown by Chemical Vapor Deposition

정상철^†, 김상채¹, 서성규²

순천대학교 환경공학과, 순천 540-742
¹목포대학교 환경교육과, 목포 530-730
²여수대학교 건설/환경공학부, 여수 550-749

Sang-Chul Jung^†, Sang-Chai Kim¹, and Seong-Gyu Seo²

Dept. of Environ. Eng., Sunchon National Univ., Sunchon 540-742, Korea
¹Dept. of Environ. Education, Mokpo National Univ., Mokpo 530-730, Korea
²Division of Civil and Environ. Eng., Yosu National Univ., Yosu 550-749, Korea

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초록

제조방법을 달리하여 TiO2광촉매 막을 합성하였고, 제조방법에 따른 광촉매 분해 특성을 메틸렌블루의 광분해를 통하여 검토하였다. 전구체로 titanium tetraisopropoxide를 이용하여 아나타제 결정구조의 TiO2 막을 알루미나구 위에 화학기상증착법(CVD)과 졸-겔법으로 제조하였다. CVD법으로 만든 TiO2 광촉매는 메틸렌블루 용액의 순환속도가 빠를 때와 단파장대의 UV램프에서 좋은 특성을 나타내었다. 화학기상증착법으로 제조한 광촉매가 졸-겔법의 광촉매보다 약 5배정도 광촉매 활성이 높게 나타났다.

Using the different preparation methods, we synthesized TiO 2 photocatalyst coatings and examined the photocatalytic decomposition of methylene blue using them. Anatase TiO2 coatings on alumina balls were prepared by Chemical Vapor Deposition(CVD) or sol-gel methods using titanium tetraisopropoxide as a precursor. In the case of CVD-grown TiO2 photo-catalysts, the high circulation rate of methylene blue solution and the short mean wavelength of UV lamp resulted in better decomposition activity of methylene blue. CVD-grown TiO2 photocatalyst was found to be five times more active than the TiO2 photocatalyst from sol-gel method.

Keywords:TiO2 Coating;Chemical Vapor Deposition;Sol-Gel Method;Photocatalytic Activity

[References]

Fujishima A, Honda K, Nature, 37, 238 (1972)
Fox MA, Dulay MT, Chem. Rev., 93, 341 (1993)
Xu YM, Langford CH, J. Phys. Chem. B, 101(16), 3115 (1997)
Ibusuki T, Takeuchi K, J. Mol. Catal., 88, 93 (1994)
Choi WY, Hoffmann MR, Environ. Sci. Technol., 29, 1646 (1995)
Tada H, Saito Y, Kawahara H, J. Electrochem. Soc., 138(1), 140 (1991)
Min H, Erwin T, Abhaya KD, Michael RP, Bertha MS, Environ. Sci. Technol., 30, 3084 (1996)
Karakitsou K, Verykios XE, J. Catal., 152(2), 360 (1995)
Linsebigler AL, Lu GQ, Yates JT, Chem. Rev., 95(3), 735 (1995)
Tsai SJ, Cheng S, Catal. Today, 33(1-3), 227 (1997)
Fu X, Clark LAC, Yang Q, Anderson MA, Environ. Sci. Technol., 30, 647 (1996)
Lassaletta G, Fernandez A, Espinos JP, Gonzalezelipe AR, J. Phys. Chem., 99(5), 1484 (1995)
Flood RU, Fitzmaurice D, J. Phys. Chem., 99(22), 8954 (1995)
Morishita S, Suzuki K, Bull. Chem. Soc. Jpn., 67(8), 2354 (1994)
Kato K, Tsuzuki A, Taoda H, Torii Y, Kato T, Butsugan Y, J. Mater. Sci., 29(22), 5911 (1994)
Jung SC, Imaishi N, Korean J. Chem. Eng., 16(2), 229 (1999)
Kim JW, Kim DO, Hahn YB, Korean J. Chem. Eng., 15(2), 217 (1998)
Jung SC, Imaishi N, Park HC, Kag. Kog. Ronbunshu, 21(2), 385 (1995)
Jung SC, Imaishi N, Park HC, Jpn. J. Appl. Phys., 34, L775 (1995)
Siefering KL, Griffin GL, J. Electrochem. Soc., 137(4), 1206 (1990)
Siefering KL, Griffin GL, J. Electrochem. Soc., 137(3), 814 (1990)
Shimogaki Y, Komiyama H, J. Ceram. Soc. Jpn. Inter. Ed., 95, 65 (1987)

[Referenced By]

[1] Fujishima A, Honda K, Nature, 37, 238 (1972)

[2] Fox MA, Dulay MT, Chem. Rev., 93, 341 (1993)

[3] Xu YM, Langford CH, J. Phys. Chem. B, 101(16), 3115 (1997)

[4] Ibusuki T, Takeuchi K, J. Mol. Catal., 88, 93 (1994)

[5] Choi WY, Hoffmann MR, Environ. Sci. Technol., 29, 1646 (1995)

[6] Tada H, Saito Y, Kawahara H, J. Electrochem. Soc., 138(1), 140 (1991)

[7] Min H, Erwin T, Abhaya KD, Michael RP, Bertha MS, Environ. Sci. Technol., 30, 3084 (1996)

[8] Karakitsou K, Verykios XE, J. Catal., 152(2), 360 (1995)

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

[10] Tsai SJ, Cheng S, Catal. Today, 33(1-3), 227 (1997)

[11] Fu X, Clark LAC, Yang Q, Anderson MA, Environ. Sci. Technol., 30, 647 (1996)

[12] Lassaletta G, Fernandez A, Espinos JP, Gonzalezelipe AR, J. Phys. Chem., 99(5), 1484 (1995)

[13] Flood RU, Fitzmaurice D, J. Phys. Chem., 99(22), 8954 (1995)

[14] Morishita S, Suzuki K, Bull. Chem. Soc. Jpn., 67(8), 2354 (1994)

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

[16] Jung SC, Imaishi N, Korean J. Chem. Eng., 16(2), 229 (1999)

[17] Kim JW, Kim DO, Hahn YB, Korean J. Chem. Eng., 15(2), 217 (1998)

[18] Jung SC, Imaishi N, Park HC, Kag. Kog. Ronbunshu, 21(2), 385 (1995)

[19] Jung SC, Imaishi N, Park HC, Jpn. J. Appl. Phys., 34, L775 (1995)

[20] Siefering KL, Griffin GL, J. Electrochem. Soc., 137(4), 1206 (1990)

[21] Siefering KL, Griffin GL, J. Electrochem. Soc., 137(3), 814 (1990)

[22] Shimogaki Y, Komiyama H, J. Ceram. Soc. Jpn. Inter. Ed., 95, 65 (1987)