Solvothermal 법에 의해 제조된 Sn-TiO2 나노 반도체 촉매 상에서의 수중 부유 톨루엔 광분해 반응

김지연; 김지은; 강미숙; Jiyeon Kim; Jieun Kim; Misook Kang

Clean Technology, Vol.16, No.1, 46-50, March, 2010

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Solvothermal 법에 의해 제조된 Sn-TiO2 나노 반도체 촉매 상에서의 수중 부유 톨루엔 광분해 반응

Toulene Removal over the Water-suspended Sn-Incorporated TiO2 Photocatalyst Prepared by Solvothermal Method

김지연, 김지은, 강미숙 ^†

영남대학교 화학과, 712-749 경북 경산시 대동 214-1

Jiyeon Kim, Jieun Kim, and Misook Kang^†

Department of Chemistry, Yeungnam University, 214-1 Dae-dong, Gyeongsan, Gyeongbuk 712-749, Korea

E-mail:

초록

본 연구에서는 새집증후군의 대표적 원인물질인 수중 부유 톨루엔을 효율적으로 분해하기 위해 Sn원소를 티타니아 골격에 삽입하여 고온 고압에서 용매열(solvothermal)법으로 Sn-TiO2 나노 광촉매를 제조하였다. 제조한 Sn-TiO2의 물리적 특성은 X-ray 회절분석법, 투과전자현미경, 주사전자현미경, 자외선-가시선 분광 광도계를 통하여 분석하였다. Sn-TiO2의 광촉매 활성은 수중 부유 톨루엔 광분해반응을 통해 확인하였고, 반응 전후의 수중 부유 톨루엔 농도는 자외선-가시선 분광광도계를 이용하여 측정하였다. 수중 부유 톨루엔 광분해반응 결과 0.01 mol% Sn-TiO2 촉매가 순수 TiO2 (anatase) 광촉매보다 활성이 향상되었으며. 500ppm 수중 부유 톨루엔은 300분 이내에 완전히 분해되었다.

This study focuses on the removal of water-suspended toluene of a representative sick house compounds in a liquid photo-system using nanometer-sized Sn-incorporated TiO2 which was synthesized by a solvothermal method. The characteristics of the synthesized Sn-TiO2 were analyzed by X-ray Diffraction (XRD), Transmission electron microscopy (TEM), Scanning electron microscopy (SEM), and UV-visible spectroscopy (UV-Vis). To estimate the photocatalytic activity of Sn-TiO2, the photodegradation of water-suspended toluene was performed, and the remaining concentration was determined using UV-visible spectroscopy. The water-suspended toluene photodegradation over Sn-incorporated TiO2 catalyst was better than that over pure TiO2 (anatase). The water-suspended toluene of 500 ppm was perfectly decomposed within 300 minutes over 0.01 mol% Sn-TiO2.

Keywords:Solvothermal method;Sn-Incorporated TiO2;Toluene photodegradation

[References]

Nastaj JF, Ambroz˙ek B, Rudnicka J, Int. Commun. Heat Mass Trans., 33, 80 (2006)
Florence BM, Uwe W, Valerie S, Braunc AM, Oliveros E, Maurette MT, J. Photochem. Photobiol. A, 132, 225 (2000)
Sano T, Kutsuna S, Negishi N, Takeuchi K, J. Mol. Catal. A-Chem., 189(2), 263 (2002)
Hashimoto K, Kawai T, Sakata T, J. Phys. Chem., 88, 4083 (1984)
Mills G, Hoffmann MR, Environ. Sci. Technol., 27, 1681 (1993)
Matthews RW, J. Phys. Chem., 91, 3328 (1987)
Kormann C, Bahnemann DW, Hoffmann MR, Environ. Sci. Technol., 25, 494 (1991)
Lee SH, Kang M, Cho SM, Han GY, Kim BW, Yoon KJ, Chung CH, Photochem. Photobiol. A., 146, 121 (2001)
Kang M, Appl. Catal. B: Environ., 37(3), 187 (2002)
Choi W, Lee J, Kim S, Hwang S, Lee MC, Lee TK, J. Ind. Eng. Chem., 9(1), 96 (2003)
Mary Celin S, Pandit M, Kapoor JC, Sharma RK, Chemosphere, 53, 63 (2003)
Kang M, Mater. Lett., 59, 3122 (2005)
Baia L, Peter A, Cosoveanu V, Indrea E, Baia M, Popp J, Danciu V, Thin Solid Films, 511, 512 (2006)

[Related Articles]

[1] Nastaj JF, Ambroz˙ek B, Rudnicka J, Int. Commun. Heat Mass Trans., 33, 80 (2006)

[2] Florence BM, Uwe W, Valerie S, Braunc AM, Oliveros E, Maurette MT, J. Photochem. Photobiol. A, 132, 225 (2000)

[3] Sano T, Kutsuna S, Negishi N, Takeuchi K, J. Mol. Catal. A-Chem., 189(2), 263 (2002)

[4] Hashimoto K, Kawai T, Sakata T, J. Phys. Chem., 88, 4083 (1984)

[5] Mills G, Hoffmann MR, Environ. Sci. Technol., 27, 1681 (1993)

[6] Matthews RW, J. Phys. Chem., 91, 3328 (1987)

[7] Kormann C, Bahnemann DW, Hoffmann MR, Environ. Sci. Technol., 25, 494 (1991)

[8] Lee SH, Kang M, Cho SM, Han GY, Kim BW, Yoon KJ, Chung CH, Photochem. Photobiol. A., 146, 121 (2001)

[9] Kang M, Appl. Catal. B: Environ., 37(3), 187 (2002)

[10] Choi W, Lee J, Kim S, Hwang S, Lee MC, Lee TK, J. Ind. Eng. Chem., 9(1), 96 (2003)

[11] Mary Celin S, Pandit M, Kapoor JC, Sharma RK, Chemosphere, 53, 63 (2003)

[12] Kang M, Mater. Lett., 59, 3122 (2005)

[13] Baia L, Peter A, Cosoveanu V, Indrea E, Baia M, Popp J, Danciu V, Thin Solid Films, 511, 512 (2006)