저온연소법에 의한 이산화티탄의 합성 및 메틸렌블루의 광촉매 분해반응

백승희; 정원영; 이근대; 박성수; 홍성수; Seung Hee Baek; Won Young Jung; Gun Dae Lee; Seong Soo Park; Seong-Soo Hong

Journal of the Korean Industrial and Engineering Chemistry, Vol.20, No.3, 329-334, June, 2009

Synthesis of Titanium Dioxides Using Low Temperature Combustion Method and Photocatalytic Decomposition of Methylene Blue

백승희, 정원영, 이근대 , 박성수 , 홍성수 ^†

부경대학교 공과대학 응용화학공학부

Seung Hee Baek, Won Young Jung, Gun Dae Lee , Seong Soo Park , and Seong-Soo Hong^†

Department of Chemical Engineering, Pukyong National University, Pusan 608-739, Korea

E-mail:

초록

저온연소법을 이용하여 이산화티탄과 이트륨 이온이 첨가된 이산화티탄을 합성하였다. 합성조건에 따른 입자의 크기와 모양, 결정성 등에 미치는 영향을 알아보았고, 또한 제조된 촉매의 메틸렌블루의 광분해 활성을 조사하였다. XRD 분석 결과로부터 염기성 조건에서 합성된 경우에는 아나타제형 구조만 나타났으나 산성 및 중성에서는 아나타제와 루틸형이 혼합되어 나타났다. CA/TTIP 비에 관계없이 아나타제형 구조만 나타났으며, CA/TTIP 비가 증가할수록 입자의 크기는 작아지는 것을 볼 수 있다. 소성온도가 600 ℃ 이상에서는 아나타제 결정구조가 루틸 결정구조로 변환되기 시작하였다. 한편, 입자들의 모양은 소성온도가 높아질수록 구형으로 변화되었으며, 입자의 크기가 증가하였다. 광촉매 반응의 활성은 CA/TTIP 몰비가 증가할수록, 염기성 조건에서 제조한 경우에 더 높게 나타났으며, 500 ℃에서 소성 시킨 경우에 가장 높은 활성을 보여주었다. 그리고 1 mole% 이트륨 이온을 첨가 시킨 것이 가장 높은 광촉매 활성을 보여주었으며, 상업용 촉매인 P-25 경우보다 높은 활성을 보여주고 있다.

Yttrium ions doped TiO2 particles have been prepared using a low temperature combustion method. The physical properties were investigated, together with the activity of TiO2 particles as a photocatalyst for the decomposition of methylene blue. From XRD results, the major phase of all the TiO2 particles prepared under basic condition was an anatase structure but a rutile peak was observed when they are prepared under acidic condition. The crystallite size of TiO2 particles was decreased as the molar ratio of CA/TTIP increased. The photocatalytic activity increased with an increase of CA/TTIP molar ratio and pH in the solution. In addition, the doping of 1.0 mole% yttrium ion on the TiO2 enhanced the photocatalytic activity and showed the higher activity than commercial P-25 catalyst.

Keywords:TiO2 particles;yttrium ions;low temperature combustion method;photocatalytic decomposition;methylene blue

[References]

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Larson SA, Falconer JL, Appl. Catal. B: Environ., 4(4), 325 (1994)
Kamat PV, Dimitrijevic NM, Solar Energy, 44, 83 (1990)
Herrmann JM, Tahiri H, Aitichou Y, Lassaletta G, Gonzalezelipe AR, Fernandez A, Appl. Catal. B: Environ., 13(3-4), 219 (1997)
Fox MA, Dulay MT, Chem. Rev., 93, 341 (1993)
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Yoldas BE, J. Mater. Sci., 10, 1856 (1986)
Anderson C, Bard AJ, J. Phys. Chem., 101, 2611 (1997)
Ogawa S, Hu K, Band AJ, J. Phys. Chem., 101, 5707 (1997)
Kim D, Woo SI, Solid State Commun., 136, 554 (2005)
Iliev V, Tomova D, Bilyarska L, Eliyas A, Petrov L, Appl. Catal. B: Environ., 63(3-4), 266 (2006)
Yan XL, He J, Evans DG, Duan X, Zhu YX, Appl. Catal. B: Environ., 55(4), 243 (2005)
Cullity BD, Elements of X-Ray Diffraction. Adison-Wesley, Reading, MA (1978)
Kumar PNK, Ph. Thesis D, University of Twente, 7500 AE Enschede, The Netherlands (1993)
Chhabra V, Pillai V, Mishra BK, Morrone A, Shah DO, Langmuir, 11, 33 (1995)
Gopal M, Hashimoto K, Watanabe T, J. Mater. Sci., 32, 6011 (1997)
Larbot A, Alary JA, Fabre JP, Guizard C, Cot L, Better Ceramics Through Chemistry Ⅱ, 659 (1986)
Uno M, Kosuga A, Okui M, Horisaka K, Yamanaka S, Journal of Alloys and Compounds, 400, 270 (2005)
Wolf K, Yazdani A, Yates P, J. Air Waste Manage. Assoc., 41, 1055 (1991)
Turchi CS, Ollis DF, J. Catal., 122, 178 (1990)
Lee MS, Lee GD, Ju CS, Lim KT, Hong SS, J. Korean Ind. Eng. Chem., 13(3), 216 (2002)

[Related Articles]

[1] Matsuda S, Kato A, Appl. Catal., 8, 149 (1983)

[2] Larson SA, Falconer JL, Appl. Catal. B: Environ., 4(4), 325 (1994)

[3] Kamat PV, Dimitrijevic NM, Solar Energy, 44, 83 (1990)

[4] Herrmann JM, Tahiri H, Aitichou Y, Lassaletta G, Gonzalezelipe AR, Fernandez A, Appl. Catal. B: Environ., 13(3-4), 219 (1997)

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

[6] Zzanderna AW, Rao CNR, Honig JM, Trans. Faraday. Soc., 54, 1069 (1958)

[7] Yoganarasimhan SR, Rao CNR, Trans. Fraday. Soc., 58, 1579 (1962)

[8] Yoldas BE, J. Mater. Sci., 10, 1856 (1986)

[9] Anderson C, Bard AJ, J. Phys. Chem., 101, 2611 (1997)

[10] Ogawa S, Hu K, Band AJ, J. Phys. Chem., 101, 5707 (1997)

[11] Kim D, Woo SI, Solid State Commun., 136, 554 (2005)

[12] Iliev V, Tomova D, Bilyarska L, Eliyas A, Petrov L, Appl. Catal. B: Environ., 63(3-4), 266 (2006)

[13] Yan XL, He J, Evans DG, Duan X, Zhu YX, Appl. Catal. B: Environ., 55(4), 243 (2005)

[14] Cullity BD, Elements of X-Ray Diffraction. Adison-Wesley, Reading, MA (1978)

[15] Kumar PNK, Ph. Thesis D, University of Twente, 7500 AE Enschede, The Netherlands (1993)

[16] Chhabra V, Pillai V, Mishra BK, Morrone A, Shah DO, Langmuir, 11, 33 (1995)

[17] Gopal M, Hashimoto K, Watanabe T, J. Mater. Sci., 32, 6011 (1997)

[18] Larbot A, Alary JA, Fabre JP, Guizard C, Cot L, Better Ceramics Through Chemistry Ⅱ, 659 (1986)

[19] Uno M, Kosuga A, Okui M, Horisaka K, Yamanaka S, Journal of Alloys and Compounds, 400, 270 (2005)

[20] Wolf K, Yazdani A, Yates P, J. Air Waste Manage. Assoc., 41, 1055 (1991)

[21] Turchi CS, Ollis DF, J. Catal., 122, 178 (1990)

[22] Lee MS, Lee GD, Ju CS, Lim KT, Hong SS, J. Korean Ind. Eng. Chem., 13(3), 216 (2002)